All Underground Sites of showcaves.com By Country
5659 underground sites are listed on showcaves.com on 27-JUN-2022 19:45
Explanation:
- The names are listed alphabetically.
- The names are always given in the original language, if possible and known.
- If the original language has no Latin font, we give the common transcription.
Albania4 entries
Algeria6 entries
Anguilla4 entries
Antigua & Barbuda6 entries
Argentina17 entries
Caverna de las Brujas
Cavernas del Viejo Volcan Parque Cerro Leones- Cavernas El Sauce
El Zanjón de Granados- Cueva de Gualicho
Hipasam Iron Mine
Puente del Inca- Inca Cueva
- Mina De Oro La Carolina
- Cueva de las Manos
- Cueva de Los Pajaritos
- Gruta de la Virgen de la Medalla Milagrosa
- Las grutas de Ongamira
- Puente del Diablo
- Cueva del Tigré
- Cuevas de Waira
- Minera Wanda
Armenia9 entries
Aruba8 entries
Australia175 entries
- Abercrombie Caves
- Abrakurrie Cave
- Alexandra Cave
- Argyle Diamond Mine
- Balaclava Mine
- Bald Hill Mine
- Bates Cave
- Battery Hill
- Beaconsfield Mine and Heritage Centre
Berry Springs- Big Opal Mine
- Blackfellows Hand Cave
- Blair Athol Coal Mine
- Blanche Cave
- Bobby Dazzler Walk-in Mine
- Bon Accord Mine Complex
- Borenore Caves
- Brides Cave
- Burra Monster Mine
- Cabaret Cave
- Calgardup Cave
- Cammoo Cave
- Camooweal Caves National Park
- Capricorn Caves
- Carey's Cave
- Carlotta Arch
- Castle Cave
- Cathedral Cave
Cathedral Gorge- Cave Garden
- Cerberus Cave
- Chambers of the Black Hand
- Chifley Cave
- Chillagoe Caves
- C.M.T. Underground Mine Tour
- Devil's Coach House
- Comet Gold Mine
- Crocodile Harry
- The Crystal Caves
- Cutta Cutta Caves
- Historic Daydream Mine
- Central Deborah Gold Mine
- Delprats Underground Tourist Mine
- Desert Cave Hotel
- Digger's Dream Underground Home
- Down to Erth
- Drive-in Mine
- Echidna Chasm
- Edna May Gold Mine
- Emmaville Mining Museum
- Englebrecht Cave
- Enterprise Pit Mine Lookout
- Buchan Caves - Fairy Cave
- Fairy Dell Cave
- Fayes Underground Home
- Buchan Caves - Federal Cave
- Fig Tree Cave
- Fire Clay Caverns
- Frank Aston Underground Museum
- Geikie Gorge
- George's Gold Mine
- Giants Cave
- Glen Osmond Mine Tour
- Museum of the Goldfields
- Great Ocean Road
- Grand Arch
- Greeves Creek
- The Grotto
- Gunnadoo Gold Mine
- Gunns Plains Caves
- Gwalia Gold Mine
- Gympie Gold Mining and Historical Museum
- Hainault Gold Mine
- Hannan's North Tourist Mine - The Mining Hall Of Fame
- Hard Times Mine
- Harrie Wood Cave
- Harman 1
- Hatter's Hideout Cave and Lodge
- Hermit's Cave
- Honeycomb Cave
- Hugh's Dale Waterfall
- Imperial Cave
- Jersey Cave
- Margaret River Caves - Jewel Cave
- Jillabenan Cave
- Jingemia Cave
- Jubilee Cave
- Junction Cave
- Kanowna Belle Goldmines
- Kelly Hill Caves
- King George V Cave
- King Solomon Cave
- Kooringa Cave
- Margaret River Caves - Lake Cave
- Lennard River Gorge
- Limestone Caves
- Lithgow State Mine
- Long Tunnel Extended Gold Mine
- Lucas Cave
- Margaret River Caves - Mammoth Cave
- Marakoopa Cave
- Mary Kathleen Mine
- Mimbi Caves
- Miners' Dugouts
- Miners Heritage Walk-In Mine
- Mintaro Slate Quarries
- Museum of Old and New Art
- Montreal Goldfield
- Margaret River Caves - Moondyne Cave
- Mountain Maid Gold Mine
- Mount Lyell Copper Mine
- Mulwaree Cave
- Murrindal Caves
- Nettle Cave
- Newdegate Cave (Hastings Caves)
- Newnes Glow Worm Tunnel
- Ngilgi Cave
- North Glory Hole
- Old Timers Mine
- Old Water Wheel
- Olympic Dam Mine
- Orient Cave
- Otto Photo Underground Photographic Gallery
- Peak Hill Open Cut Experience
- PJ's Underground
- Princess Margaret Rose Cave
- Radeka's Downunder
- Ranger Uranium Mine
- Red Hill Alluvial Mine
- Ribas Underground Camping
- Ribbon Cave
- River Cave
- Riversleigh World Heritage Area
- Ross Cave
- Buchan Caves - Royal Cave
- Serbian Underground Church
- Buchan Caves - Shades Of Death Cave
- Snowy Mountains Hydro-electric Scheme
- South Glory Cave
- Spectrum Mines
- Natural Bridge Springbrook
- Stick-Tomato Cave
- Stockyard Gully Cave
- The Super Pit Lookout
- Tamborine Mountain Glow Worm Caves
- Tantanoola Cave
- Temple of Baal Cave
- Three Creeks Gold Mine
- Timor Caves
- Tinted Cave
- Tunnel Creek National Park
- Uluru
- Umoona Opal Mine and Museum
- Umpherston Sinkhole
- Undara Lava Tubes
- Underground Church
- Mount Isa Underground Hospital and Museum
- Underground Potteries
- The Underground Motel
- Unicorn Brewery Cellars
- Victoria Fossil Cave
- Walk-in Mine
- Weebubbie Cave
- Wellington Caves
- Wheal Hughes Copper Mine
- White's Mining Museum
- White Cliffs
- Widderin Caves
- Windjana Gorge
- Wollondilly Cave
- Wonambi Fossil Centre
- Wonthaggi State Coal Mine
- Yanchep Caves - Crystal Cave
- Yonderup Cave
- Yourambulla Caves
Austria141 entries
- Allander Tropfsteinhöhle
- Salzbergwerk Altaussee
- Schaubergwerk Arthurstollen
- Schau- und Lehrstollen Arzberg
- Arzberghöhle
- Auracher Löchl
- Kurzentrum Bad Bleiberg
- Bärenschützklamm
- Bartholomäberg
- Bernsteiner Felsenmuseum
- Blaue Quelle
- Schaustollen Silberbergwerk Bromriesen
- Bruneckerhöhle
- Casino Keller
- Dom Im Berg
- Donnersbachklamm
- Drachenhöhle
- Dreidärrischenhöhle
- Einhornhöhle
- Einödhöhle
- Eisensteinhöhle
- Eiskogelhöhle
- Dachstein Eispalast
- Eisriesenwelt
- Engenlochschlucht
- Entrische Kirche
- Erzberg
- Knappenloch Fallwindes
- Österreichisches Felsbildermuseum
- Feuchter Keller
- Bergbaumuseum Fohnsdorf
- Frauenmauerhöhle
- Heilklimastollen Friedrich
- Knappenloch Ganotz
- Gassel-Tropfsteinhöhle
- Gasteiner Heilstollen
- Gimpel-Labyrinth
- Granatium
- Graselhöhle
- Grasslhöhle
- Griffener Tropfsteinhöhle
- Schaubergwerk am Grillenberg
- Bergbaumuseum Hall
- Hallstatt
- Goldgräberdorf Heiligenblut
- Hermannshöhle
- Schaubergwerk Hochfeld
- Hochkarschacht
- Schaubergwerk Hofergraben
- Magnesitstollen Hohentauern
- Hohlensteinhöhle
- Schaubergwerk Hüttenberg
- Hundalm Eis- und Tropfsteinhöhle
- Johannesbachklamm
- Kaiser-Max-Grotte
- Katerloch
- Kesselfallklamm
- Kitzlochklamm
- Kläfferquelle
- Bergbaumuseum Klagenfurt
- Kohlerhöhle
- Kolowrathhöhle
- Koppenbrüllerhöhle
- Kraushöhle
- Kreidelucke
- Karstlehrpfad Krippenstein
- Kühlloch
- Schaubergwerk Kupferplatte
- Lammeröfen
- Lamprechtsofen
- Historische Kupferzeche am Larzenbach
- Schaubergwerk Leogang
- Leutasch-Klamm Wasserfallsteig
- Liechtensteinklamm
- Burg Loch
- Lurgrotte Peggau
- Lurgrotte Semriach
- Dachstein-Mammuthöhle
- Maximushöhle - The "Catacombs" of Salzburg
- Mineraliengrotte Vorderkrimml
- Bergbau- und Heimatmuseum Mühlbach
- Natur Eis Palast Hintertuxer Gletscher
- Nixhöhle
- Nothklamm
- Historische Silbergruben Oberzeiring
- Obir Tropfsteinhöhlen
- Odelsteinhöhle
- Öblarner Kupferweg
- Ötscher Tropfsteinhöhle
- Ötschergräben
- Palfauer Wasserloch
- Paulinenhöhle
- Schaubergwerk Pertisau
- Pießling Ursprung
- Prax Eishöhle
- Erdöl-Erdgas Museum Prottes
- Höhlenschoß Puxer Luegg
- Quelltuffpfad Lingenau
- Radmer Paradeisstollen
- Silberbergwerk Ramingstein
- Rappenlochschlucht
- Rettenwandhöhle
- Retzer Erlebniskeller
- Dachstein-Rieseneishöhle
- Salzachöfen
- Salzwelten Salzburg
- Scheukofenhöhle
- Schneckenloch
- Höhlenmuseum Schönbergalm
- Schwarzwasserhöhle
- Schwazer Silberbergwerk
- Seegrotte
- Seisenbergklamm
- Sigmund Thun Klamm
- Silberkarklamm
- Spannagelhöhle
- Spitzenbachklamm
- Steinwandklamm
- Eisgrotte Stubaier Gletscher
- Schaubergwerk Sunfixl-Höhle
- Schaubergwerk Sunnpau
- Tauerngold-Rundwanderweg
- Terra Mystica
- Tiefenbachklamm
- Tischofer Höhle
- Tscheppaschlucht
- Schaubergwerk "Glück Auf" Ulpenalpe
- Underground Vienna
- Dr.-Vogelgesang-Klamm
- Sub Terra Vorau
- Vorderkaserklamm
- Wasserlochklamm
- Wassermannsloch
- Wienerwaldmuseum
- Wildschönauer Erlebnisbergwerk
- Wörschachklamm
- Wolfsklamm
- Bunkermuseum Wurzenpass
- Ysperklamm
- Zillertaler Goldschaubergwerk
- Erzweg Zinkwand
Azerbaijan2 entries
Bahamas19 entries
Bangladesh5 entries
Barbados3 entries
Belarus1 entry
Belgium45 entries
- Abime
- Ardoisalle 1947
- Bertrix Slate Mine
- Blegny
- Ecomusée du Bois-du-Luc
- Bois du Cazier
- Citadelle de Namur
- Grotte et Abime de Comblain-au-pont
- Coudenberg Palace
- Délirium Café
- Musée des Égouts
- Grotte d'Eprave
- Grotte de Floreffe
- Grottes de Folx-Les-Caves
- Le Fondry Des Chiens
- Parc National de Furfooz
- Carriere souterraine de Gèromont
- Grotte de Goyet
- Grottes de Han-sur-Lesse
- Musée de la Mine d'Harchies
- Grand Hornu
- Grottes des 1001 Nuits
- Grotten Van Kanne
- Brasserie Kazematten
- Brouwerij De Kazematten
- Command Bunker Kemmel
- La Louvière
- Grottes de Lustin
- Carrières souterraines de la Malogne
- Grotte La Merveilleuse
- Grotte de Mont-Fat
- Nemo 33
- Grottes de Neptune
- Grotte du Père Noël
- Les souterrains de Philippeville
- Grottes Pont d'Arcole
- La Grotte Ramioul
- Schieferstollen Recht
- Grottes de Remouchamps
- Grotte de Lorette
- Grotte Saint-Remacle
- Grotte Scladina
- Les minières de silex néolithique de Spiennes à Mons
- La Grotte de Spy
- Vlaams Mijnmuseum
Belize13 entries
Bermuda8 entries
Bhutan2 entries
Bolivia6 entries
Bosnia and Herzegovina12 entries
Botswana3 entries
Brazil93 entries
- Mina 13 de Maio
- Abismo Anhumas
- Caverna Água Suja
- Gruta Alambari de Baixo
- Buraco das Andorinhas
- Antonio Pereira Imperial Topaz Mine
- Caverna Aroe Jari
- Poço Azul
- Gruta do Bacaetava
- Mina do Bijoca
- Gruta da Boa Sorte
- Toca da Boa Vista
- Bom Jesus da Lapa
- Gruta de Botuverá
- Buraco das Araras
- Buraco das Araras
- Furna do Buraco do Padre
- Nucleo Caboclos
- Museu Mina Modelo Caetano Sonego
- Buraco do Cão
- Capão Mine
- Museu Estadual do Carvão
- Parque da Cascata
- Gruta do Centenário
- Minas Chico Rei
- Gruta Colorida
- Caverna do Diabo
- Gruta dos Ecos
- Gruta das Encantadas
- Poço Encantado
- Gruta da Fada
- Mina Felipe dos Santos
- Gruta do Fendão
- Poço Fervedouro
- Gruta do Fogo
- Minas Fonte Meu Bem Querer
- Gruta da Fumaça
- Gruta da Glória
- Mina de Gramado
- Inscrições Rupestres
- Itaimbezinho Canyon
- Caverna Janelão
- Mina do Jeje
- Gruta dos Jesuítas
- Gruta da Lage Branca
- Gruta do Lago Azul
- Lajedo de Soledade
- Gruta da Lancinha
- Virgem da Lapa
- Gruta Lapa Doce
- Gruta da Lapa Grande
- Gruta da Lapa Nova
- Gruta do Lapão
- Gruta Lapa Velha
- Gruta da Lapinha
- Gruta do Limoeiro
- Gruta Luminosa
- Caverna da Mandaçaia
- Gruta da Mangabeira
- Gruta do Maquiné
- Caverna do Maroaga
- Cavernas Misteriosas
- Caverna do Morro do Couto
- Morro do Ouro
- Caverna do Morro Preto
- Museu de Minas Ouro Prêto
- Nascente Azul
- Mina de Visitação Octávio Fontana
- Caverna Olhos D'Água
- Caverna Ouro Grosso
- Gruta do Padre Caio
- Gruta Dos Paiva
- Minas Do Palácio Velho
- Minas de Passagem
- Casa de Pedra
- Gruta da Pedra da Santa
- Gruta Pratinha
- Gruta Rei do Mato
- Caverna Rio dos Bugres
- Caverna Santana
- Mina de Ouro Santa Rita
- Catacumbas do Santuário do Caraça
- Gruta São Mateus
- Grutas de São Miguel
- Serra da Capivara National Park
- Gruta do Sumidouro
- Gruta do Tatu
- Gruta da Torrinha
- Gruta de Ubajara
- Minas Velha
- Mina du Veloso
- Mina Vila Rica
- Furnas de Vila Velha
Bulgaria48 entries
- Aladzha Monastery
- Aleksandrovo Thracian Tomb
- Alexander Nevsky Cathedral Underground Crypt
- Bacho Kiro
- Basarbovo Cave Monastery
- Belogradchik Rocks
- Peštera "Biserna" - Pearl Cave
- Buynovsko Zhdrelo
- Museum of Speleology and Bulgarian Karst
- Chudnite Mostove
- Demir Baba
- Devataška peštera
- Djavolskoto Garlo Cave
- Dyavolski Most
- Erma Gorge
- Golubovitsa Cave
- Haramiiska Dupka
- Iagodinska Peštera
- Ivanovo Rock Churches
- Kazanluk Tomb
- Peshtera Kozarnika
- Krushuna
- Ledenika
- Lepenitza Cave
- Madan Museum of Ore Mining and Mining Industry
- Magura
- Museum of Mineralogy, Petrology and Mineral Resources
- Orlova Čuka
- Temple in the Tomb of Ostrusha
- Underground Mining Museum Pernik
- Pleven Wine Museum
- Regional Natural History Museum
- Thrakian Tomb "Hollow Mound" Pomorie
- Prohodna Cave
- Cave of St. Ivan Rilski
- Cave of St. Ivan Rilski near Skrino
- Serdika Metro Station
- Tomb of Seuthes III
- Sharenka Cave
- Skalen Manastir Shashkanite
- Snežanka Peštera
- Archaeological Level of St. Sophia Basilica
- Sueva Dupka
- Ginina Mogila - Thracian Tomb of Sveshtari
- Temnata dupka
- Trigrad Gorge
- Uhlovitsa Pestera
- Venetsa Cave
Cabo Verde1 entry
Cambodia6 entries
Canada62 entries
- Arch Cave
- Artlish River Cave
- Asbestos Mineral Museum
- Atlas Coal Mine National Historic Site
- Bat Cave
- BC Museum of Mining
- Bellevue Underground Mine Tour
- Bell Island's Mine Museum and Underground Tour
- Bonnechere Caves
- Bruce Peninsula Grotto
- Bruce's Caves
- Wiarton's Hermit
- Canyon Creek Ice Cave
- Cape Breton Miners' Museum
- Capelton Mines
- Cave and Basin
- Cody Caves Provincial Park
- Colonial Adit Underground Mine Tour
- Corner Brook Cave
- Mine Cristal
- Diefenbunker
- Duncan Escarpment
- Elliot Lake Nuclear and Mining Museum
- Eramosa Karst
- GoldBottom Mine Tours
- Greig's Scenic Caves
- Horne Lake Caves
- Kimberley Underground Mining Railway
- Caverne Laflèche Caves
- Canadian Energy Museum
- Little Huson Cave Park
- Lusk Cave
- Mascot Mine
- Mindemoya Cave
- Minigill Cave
- La Ville Souterraine
- Tunnels of Moose Jaw
- Morden Colliery
- Nakimu Caves
- Nanaimo Museum
- Oven's Caves
- PATH
- Port Alberni Hole in the Wall
- Rat's Nest Cave
- Riverbend Cave
- Rossland Mining Museum
- La Grotte de Saint-Elzéar
- Cavernicole de Saint-Léonard
- Scenic Caves
- Simpson Copper Mineshaft
- Snow Lake Mining Town Museum
- Sparwood Mine Tours
- Sudbury Mining Museum
- Thetford Mines
- Timmins Underground Gold Mine Tour
- Toburn Mine
- Le Trou de la Fée
- Le Trou du Diable
- Tyendinaga Cave
- Upana Caves
- Warsaw Caves
- White Cave
Cayman Islands8 entries
Chile10 entries
China221 entries
- Underground Project 131
- 816 Military Nuclear Plant
- Alufu Dong
- Astana Underground Museum
- Bailong Dong
- Baima Dong
- Bái Ma Jiàng Jun Dòng
- Baimo Cave
- Bainiao Cave
- Baishiya Karst Cave
- Baixiangdong
- Bā mǎ dòngtiānfúdì
- Bamei Polje
- Beihai Tunnel
- Beishiku Si
- Benshan Fifth Tunnel
- Benxi Water Cave
- Bezeklik Thousand Buddha Caves
- Bing Hu Dong
- Biyundong
- Black Buddha Cave
- Boyue Cave
- Butterfly Cave
- Changyu Dongtian - Changyu Stone Cave
- Chaoyang Dong
- Cheung Po Tsai Cave
- Chuiyun Tongtian River
- Crown Cave
- Da'an Cave
- Daciyan
- Dahan Stronghold
- Dashiwei Tiankeng
- Daxiangshan Grottoes
- Dazu Grottoes
- Di Shui Dong
- Dragon Cave
- Dragon Hole
- Dunhuang Mogao Caves
- Fengyu Cave
- Five-Flower Lake
- Fromosa Boulevard Station
- Furong Dong
- Fuyang Cave
- Gangcha Cave
- Gaxian Dong
- Getu River Caves
- Underground Great Wall
- Guanma Dong
- Jinzhou Guanyin Dong
- Guanyindong
- Xixiu Guanyin Dong
- Yandang Guanyin Dong
- Guoliang Wall-Mounted Highway
- Gurugem Phuk
- Guyaju Caves
- Haikong Cave
- Haizhou Mine
- Hantongshan Shenxian Dong
- Hei Shan Gou
- Hou'er Sinkhole
- Monkey Mine Museum
- Huangchuan Three Gorges
- Huanglong Dong
- Huanglong
- Huánglóng dòng
- Huangzhu Dong
- Huashan Quarries
- Huayan Temple
- Huayangdong
- Hwanggeum Dong
- Jiguandong
- Jing Dong Da Rong Dong
- Jiulongdong
- Jiutian Dong
- Yiyuan Jiutian Cave
- Jiuxiang Scenic Resort
- Jiuxiao Biyundong
- Kaiyuan Cave
- Kizil Caves
- Kongshan Baiyun Cave
- Kunming Natural History Museum of Zoology
- Xixia Laojun Cave
- Chongqing Laojun Cave
- Chongqing Laolong Cave
- Lao Mei
- Liánhuā dòng
- Lianzhou Underground River Scenic Area
- Linggu Dong
- Lingqi Karst Cave
- Ling Shan Cave
- Lingyan Cave
- Yiyuan Lingzhi Cave
- Lion's Cave
- Liuku Show Cave
- Longgang Tiankeng
- Longgong Caves
- Longgong Cave, Jiangxi
- Longkong Dong
- Longlin Shihai
- Long Men Dong
- Longmen Grottoes
- Longquan Cave
- Longshuixia Difeng
- Longtan Karst Cave
- Longxian Palace
- Longyan Cave
- Longyou Caves
- Lotus Cave
- Loufang Cave
- Ludi Yan - Reed Flute Cave
- Luobi Cave
- Luojishan Fairy Cave
- Luō mèi liánhuā dòng
- Luzhou Fairy Cave
- Mahendra Gupha
- Maiji Shan Caves
- Menggong Guanyin Dong
- Milarepa's Cave
- Moon Hill
- Moon Water Cave
- Nanjiang Grand Canyon
- Nanshiku Temple
- Evil Dragon Cave/Righteous Dragon Cave
- Nuoshui Dongtian
- Panxian Dadong
- Leye Piercing Tiankeng
- Qianren Cave
- Qiliang Dong
- Qilin Cave
- Qilin Cave Park
- Qingkou Tiankeng
- Qingtian Hall
- Qixia Shan
- Qixing Yan
- Yiyuan Rong Dong
- Ruijing Cave
- Sanmenxia Yaodong
- Sanmin Bat Cave
- Sanqiao Tiankeng
- Sanyou Dong
- Shanjuan Dong
- The Shelter
- Shengjinkou
- Shenyang Shui Dong
- Shihaidong
- Shihuadong
- Shílín - Stone Forest
- Shimao Wonderland Hotel
- Shizidong
- Shuanglong Cave
- Shui Lian Dong
- Shuiliandong
- Shuiyuan Cave
- Silver Cave
- Silver Stream Cave
- Stone Cavehouse Hotel
- Taiji Dong
- Taohuayuan
- Taoyuandong
- Taroko Gorge
- Tenglong Dong
- Tianbao Cave
- Tianlong Ancient Cave
- Tianmen Dong
- Tianti Grottoes
- Tianyi Lane
- Tianzhong Dong
- Tiger Leaping Gorge
- The Grottoes of Toyuk
- Tunnel 88
- Tushuk Tash
- Tuyuq Khojam Mazar
- Beijing's Underground City
- Wangtian Dong Rongdong
- Wannian Ice Cave
- Wanxiang Dong
- Wolongdong
- Wuyan Cave
- Xia Bing Dong
- Xian Pu Dong
- Xianqidong
- Xianrendong
- Fairy Bridge
- Lushan Fairy Cave
- Xiaozhai Tiankeng
- Xiashiyuan Tiankeng
- Xilutian Mine
- Xionglong Cave
- Xuan Kong Si
- Xuehuadong - Snow Flake Cave
- Xueyu Cave
- Yangling Museum
- Yangming Cave
- Yanzi Dong
- Daqikong
- Yaolindong
- Yincuixia
- Yinhedong
- Yinhudong
- Yinzi Cave
- Yishui Underground Grand Canyon
- Yuedong
- Lok Yu-Hua Dong
- Yuhuang Cave
- Yulin Grotto
- Yungang Grottoes
- Yunshui Cave
- Zhangjiajie National Forest Park
- Zhaishan Tunnel
- Zhangfang Ancient Battle Tunnel
- Zhanggong Dong
- Zhangguan Dong
- Zhijindong
- Zhijin Grand Canyon
- Yiyuan Zhinu Cave
- Zhongdong
- Zhongfeng Cave
- Zhongshiyuan Tiankeng
- Zhoukoudian - Peking Man Site
- Zixiadong Gorge
- Zixia Cave
Colombia16 entries
- Cerro Azul
- El Cerrejón Coal Mine
- La Cueva del Esplendor
- Cueva de los Guácharos
- Cueva de los Guácharos del Rio Claro
- Cueva de Morgan
- Mina de Sal de Nemocón
- Nuevo Tolima
- Museo del Oro Bogotá
- Puerta de Orion
- Cavernas del Río Nus
- Tierradentro Rock Tombs
- Ventanas de Tisquizoque
- Los Tuneles
- Cueva de la Vaca
- Catedral de Sal Zipaquirá
Cook Islands8 entries
Costa Rica8 entries
Croatia54 entries
- Baračeve špilje
- Jama Baredine
- Berberov Buk
- Špilja Biserujka
- Bunkeri
- Cerovačke špilje
- Izvor rijeke Cetine
- Crveno Jezero
- Djurovica Jama
- Drakonina Pecina
- Špilja Feštinsko Kraljevstvo
- Jama Golubinka
- Golubnjaca Pecina
- Grapčeva Špilja
- Grgosova Špilja
- Krapina Cave
- Nacionalni park Krka
- Izvor Kupe
- Špilja Lokvarka
- Jama Mamet
- Manita pećina
- Medvidina špilja
- Modra Spilia - Blue Grotto
- Modrić Špilja
- Špilja Mramornica
- Natural History Museum Rijeka
- Oziđana pećina
- Pazinska jama
- Plitvička Jezera
- Jama u Predolcu
- Romualdova Špilja
- Roški Slap
- Samograd Špilja - Samograd Cave
- Samograd Špilja
- Spilja Šandalja
- Špilja Šipun
- Skarin Samograd
- Slunj Rastoke
- Šparožna Jama
- Hermitage of St. Cirijaka
- Špilja Strašna Peć
- Šuplja Greda
- Talijanova Buža
- Tučepska Vilenjača
- Vela Spila
- Špilja Veternica
- Spilja Vindija
- Špilja Vranjača - Vranjaca Cave
- Vranjska draga
- Vražji Prolaz
- Vrelo Špilja
- Špilja Vrlovka
- Zelena Špilja
- Rudnik Zrinski
Cuba16 entries
- Disco Ayla
- Cuevas de Bellamar
- Cuevas de los Cimarrones
- Cuevas del Indio
- Cueva de Martín Infierno
- Minas de Matahambre
- Cueva del Palmarito
- Cueva de los Panaderos
- Cueva de los Portales
- Cueva de San Ambrosio
- Cuevas de San Miquel
- Cueva Grande de Santa Catalina
- La Gran Caverna de Santo Tomás
- Cueva de Sao Corona
- Cueva de Saturno
- Cueva de la Vaca
Curaçao3 entries
Cyprus17 entries
- Saint Barbara Cave Church
- Agios Spyridon
- Ayia Napa Sea Caves
- Ayias Solomonis Cave Church and Catacombs
- Ayia Thekla Cave Church
- Ayioi Saranta Cave Church
- Ayios Sozomenos Cave Church
- Cave of the Cyclops
- Egkleistra
- Incirli Cave
- Tombs of the Kings
- Kamara tou Koraka Natural Bridge
- Love Bridge
- Panagia Chrysopiliotissa Church
- Church of Panagia Evangelistria
- Panagia Vounarkotissa
- The Cave Bar
Czech Republic92 entries
- Adršpašsko-teplické skály
- Velká Amerika
- Pavilon Anthropos
- Jeskyne Balcarka
- Jeskyně Blanických rytířů
- Bozkovske Dolomitove jeskyne
- Hornické Muzeum
- Muzeum brněnského podzemí
- Brněnská kostnice
- Broumovské stěny
- Jeskyně Býčí skála
- Grafitový důl Český Krumlov
- Chrám kamene
- Chrustenická Šachta
- Chýnovská jeskyně
- Císařská jeskyně
- Dolní Vĕstonice
- Ekotechnické Museum
- Flascharův důl
- Grotesquery
- Důl Hlubina
- Hotel Jalta Bunker Museum
- Hranická propast
- Husitské muzeum
- Štola Jana Evangelisty
- Javoříčské jeskyně
- Jihlavské podzemí
- Štola Johannes
- Josefov Podzemi
- Kamenice Hřensko
- Cizinecký vstup do kanalizace
- Kapucínská krypta
- Katerinska jeskyne
- Klatovské katakomby
- Konĕpruské jeskyně
- Historický důl Kovárna
- Králova jeskynĕ
- Kryt 10 - Z
- Kryt Denis
- Hrádek a důl Osel Kutná Hora
- Labyrinth pod Zelným trhem
- Hornické muzeum OKD Landek
- Ledová jeskynĕ
- Zámecké sklepení Litomyšl
- Propast Macocha
- Malá Pravčická Brána
- Malovaný sklep
- Štoly Marie pomocná a Koňská jáma
- Důl Mauritius
- Mělnické Podzemí
- Důl Michal
- Mincmistrovský sklep
- Mladečské jeskyně
- Modlivý důl
- Muzeum vltavínů
- Ledová Jeskyně Naděje
- Jeskyne Na Pomezi
- Jeskyně Na Špičáku
- Národi Technické Muzeum
- Nicolai-Stollen
- Ochozská jeskynĕ
- Skalní město Ostaš
- Ostrovské Skály
- Bunkr Parukářka
- Petrov Plže
- Plzeňské historické podzemí
- Prachovské skály
- Pravčická Brána
- Příhrazské Skály
- Prosek hill
- Punkevni jeskyne - Punkva River Cave
- Pusté Kostely
- Rájecké Skály
- Rudolfova štola
- Moravský sklípek
- Kostnice v Sedlci
- Šipka jeskyně
- Skalky skřítků
- Sloupsko-sosuvske jeskyne
- Solvayovy Lomy
- Stará Plynárna
- Štola Starý Martin
- Strašínská jeskyne
- Jeskyně svatého Ivana
- Tiské Stěny
- Jeskyně na Turoldu
- Valtice sklípek
- Vodojemy Brno
- Jeskyně Výpustek
- Zbrašovské aragonitové jeskyně
- Štola Země zaslíbená
- Znojmo Podzemi
Denmark5 entries
Dominican Republic12 entries
Ecuador5 entries
Egypt12 entries
El Salvador2 entries
Estonia14 entries
Ethiopia3 entries
Faroe Islands4 entries
Fiji4 entries
Finland17 entries
France381 entries
- Caves Ackerman
- Les grottes de l'Aguzou
- Grotte d'Aldène
- Ami Chenin
- Tuffière d´Amorey
- La Caune de l'Arago
- Saline Royale d'Arc-et-Senans
- Grottes d'Arcy-sur-Cure
- Cluzeaux d'Argentine
- Arles Cryptoportiques du Forum
- Aven Armand
- Atlantikwall
- La Carrière d'Aubigny
- Grotte des Audides
- Musée des Mines de Fer d'Aumetz
- Aux Vieux Logis
- Grotte d'Azé
- Grotte du Mas-d'Azil
- Grottes de la Balme
- Grotte de Bara-Bahau
- Barry troglodyte village
- Grotte de Beaume Obscure
- Grotte de Beaussac
- Grotte du Bédat
- Grotte de Bédeilhac
- Les grottes de Bellevue
- Gouffre du Béout
- Le vieux Berger
- Grottes de Bernifal
- Grottes de Bétharram
- Parc archéologique de Beynac
- Les Grottes de Bèze
- Citadelle de Bitche
- Grotte de Blanot
- Musée de la Mine de Blanzy
- Source Bleue
- La Mine Bleue
- Petit Ouvrage du Bois de Bousse A24
- Bollinger
- Grotte du Bosc
- Mines de Fer de Bourbach-le-Bas
- Grotte de Bournillon
- Les Caves Bouvet-Ladubay
- Les Boves
- Abime de Bramabiau
- Parcours troglodytique de l'Abbaye de Brantôme
- Musée de la Mine Brassac les Mines
- Château de Brézé
- Campement préhistorique de Bruniquel
- Mines de Bruoux
- Gouffre Géant de Cabrespine
- Musée de la Mine Cagnac les Mines
- Manoir de la Caillère
- Grottes de Calès
- Les Canalettes
- Canard Duchene
- Abri Préhistorique du Cap Blanc
- Musée de la Mine de Cap Garonne
- Gorges de Carança
- Grotte des Carbonnières
- Grottes de Carpe Diem
- Carreau Rodolphe
- Musée du Carreau Wendel
- Cascade des Tufs
- Souterrain médiéval du Castela
- The Catacombs of Paris
- Cathedrale d'Images
- Les Cathédrales de la Saulaie
- Cave des Producteurs de Montlouis
- Roc de Cazelle
- Grotte Célestine
- Grotte du Cerdon
- Grotte de la Chaise
- Le Musée du Champignon
- Grotte Chauvet 2 Ardèche
- Grotte Chauvet
- Chemin de la Mâture
- Grotte du Chien
- Grottes de Choranche
- Grotte de Clamouse
- Grotte du Clos del Pous
- Le Clos des Roches
- Phosphatières du Cloup d'Aural
- Grotte de la Cocalière
- Grotte des Combarelles
- Grottes du Cornadore
- Grotte de la Glacière de Corrençon
- Grotte Cosquer
- Grottes de Cougnac
- Gabriel Coulet
- Musée de la Mine Couriot
- Grottes de Cravanche
- Maison des Pierreux de Crazannes
- Abri de Cro-Magnon
- Grotte Cussac
- Heidenkapelle
- Grotte de Dargilan
- De Castellane
- Grotte des Demoiselles
- Grotte de la Devèze
- Gorges de la Diosaz
- Grotte de Domme
- Muches de Domqueur
- Source du Doubs
- Caverne du Dragon
- Grotte de la Draye Blanche
- Grotte d'Ebbou
- Grottes des Echelles
- Kasematte Edling Süd
- Eglise monolithe Saint Jean
- Le Blockhaus d'Éperlecques
- Musée de la mine Epinac
- Casemate Esch
- Gouffre d'Esparros
- Esterlin
- Cascade d’Étufs
- Sentier karstique à Excideuil
- Gouffre de la Fage
- Grotte à Farinet
- Le Faux Saulnier
- La Ferrassie
- Gorges du Fier
- Domaine Filliatreau
- Grotte de Foissac
- Grotte de Font-de-Gaume
- Fontaine de Fontestorbes
- Abbaye Royale de Fontevraud
- Grottes de Fontirou
- Grotte de Fontrabiouse
- L'Aven Grotte de la Forestière
- Fort Casso
- La Fosse de Forges
- Gorges de la Fou
- Grotte du Foulon
- Ouvrage du Four-à-Chaux
- Les mines d'argent du Fournel
- Gorge de Galamus
- Grottes Prehistorique de Gargas
- Les Caves de la Genevraie
- Grotte de la Glacière
- Gorges de Gouleyrous
- Vallée troglodytique des Goupillières
- Les Grandes Canalettes
- Grotte du Grand Roc
- Maisons troglodytes du Graufthal
- Caves Louis de Grenelle
- Musée des Gueules Rouges
- Musée de l'Abri de Hatten
- Les Hautes Roches
- Restaurant l'Hélianthe
- Huelgoat
- Grotte des Huguenots
- Mines de Hussigny-Godbrange
- Les Grottes Isturitz et Oxocelhaya
- Grottes du Pic du Jer
- Grottes de Jonas
- Musée de la Mine à Joseph-Else
- Les Journées de la Rose
- Gorges de Kakuetta
- Krug
- Grotte de Labastide
- Grotte de Labeil
- Riv. Souterraine de Labouiche
- Grotte de Lacave
- Restaurant La Cave
- La Coupole
- Mines d'argent de La Croix-aux-Mines
- Musée de la Mine à La Machine
- Grottes de Lamouroux
- Lanson
- Les Lapidiales
- Fort Troglodytique de La Roque Gageac
- Grotte de Lascaux
- Grotte de Lastournelle
- Abri de Laugerie-Haute
- Launois Père & Fils
- Laurent-Perrier
- Grotte des Lauriers
- La salle de La Verna
- Grotte de Laveuses
- Le Caveau
- Musée de la Mine Le Molay Littry
- Volcan de Lemptégy
- Le Prince Noir
- Musée National de Préhistoire
- Centre Historique Minier Lewarde
- Carrières de la Lie
- Grotte de Limousis
- Source du Lison
- Grotte de Lombrives
- Source de la Loue
- Grotte de la Luire
- Grotte de la Madelaine
- Abri la Madelene
- Magnanerie de Bourré
- Mailly Grand Cru
- Maison Forte
- Le Scialet de Malaterre
- Sentier Karstique des Malrochers
- Domaine de Marc Brédif
- Le musée de la Mine Marcel Maulini
- Cave à Margot
- Les Caves de Marson
- G.H. Martel et C°
- Aven de Marzal
- Grotto of Massabielle
- Maison des Pierreux de Massangis
- Grottes de Matata
- Grottes de Maxange
- Grotte de Médous
- Musée des Mines d'Argent des Rois Francs
- Mercier
- Grotte de la Mer de Glace
- Sentier Karstique du Grand Bois
- Grotte Prehistorique des Merveilles
- Grottes de Beaume les Messieurs
- Le Grand Canyon de Meyrangle
- La Micoque
- La Forteresse de Mimoyecques
- Minerail
- Ponts Naturels à Minerve
- Moët & Chandon
- Grotte des Moidons
- La Cave Aux Moines
- Les Caves Monmousseau
- Grotte de Montgaudier
- Grottes de Morgat
- Tunnel du Mortier
- Grotte de Moulis
- Laboratoire Souterrain de Moulis
- Abri du Moustier
- G.H. Mumm
- Musée du Vin
- La Cité Souterraine de Naours
- Grotte de Napoléon
- Musée des Mines de Fer de Neufchef
- Grotte de Niaux
- La Crypte Archéologique de Nice
- Grottes de Nichet
- Pigeonnier de la Niverdière
- Grottes de la Norée
- Grotte de l'Observatoire
- Gorges d'Ombleze
- L'Orbiere
- Aven d'Orgnac
- Grotte d'Orjobet
- Grottes de Ornolac
- Grotte d'Osselle
- Le Musée de l'Ours de Cavernes
- Gouffre de Padirac
- Pain de Sucre
- Bois de Paiolïve
- Grotte de Pair-non-Pair
- Fromageries Papillon
- Parc de la Préhistoire
- Musée des Egouts de Paris
- Métro de Paris
- Abri Pataud
- Grotte de Pech Merle
- Musée d'Art et d'Archéologie du Périgord
- The Pernod Accident
- Grottes de Perrier
- Centre des Perrières
- Perrier-Jouët
- La Petite Perrière
- La grotte des Petites-Dalles
- Musée du Pétrole
- Pierre et Lumière
- Maison de la Pierre de Volvic
- Les mines de Pioch Farrus
- Piper Heidsieck
- Grotte du Placard
- Grottes des Planches
- Abri du Poisson
- Pôle Historique Minier
- Pol Roger
- Pommery
- Le Troglo des Pommes Tapees
- Pont d'Arc
- Gorges du Pont du Diable
- Grotte de la Pontoise
- Le patrimoine souterrain de Pontoise
- Gouffre de Poudrey
- Le Prehistorama
- Les Grottes de Presque
- Cave du Prieuré
- Gouffre de Proumeyssac
- Grottes du Queroy
- Caves de Rauzan
- Le souterrain de la Règle
- Grotte de Regourdou
- Les grottes du Régulus et des Fontaines
- Reims Cryptoportique
- Abri Reverdit
- Carrière Souterraine de Rinval
- Roc-aux-Sorciers
- Grotte du Château de La Roche
- Grotte Château de La Roche Courbon
- Grotte de Rochefort
- Village troglodyte Rochemenier
- Cave des Roches
- Fontaine de Roches
- Tufière de Rolampont
- Grotte de Roland
- Grotte des Romains
- Baume de Ronze
- Grotte de Roque St Christophe
- Grotte de Rouffignac
- Ruinart
- La Sablière
- Grottes de Saint Antoine
- Ermitage Saint Antoine De Galamus
- Grottes de Saint-Cezaire
- Grotte de Sainte-Baume
- Musée de la mine de Saint-Éloy-les-Mines
- Église Monolithe Saint-Émilion
- Carrière Saint-Just
- Saint Louis Eisenthür
- Champignonnière St Maur
- Cluzeaux de Saint-Pardoux-de-Mareuil
- Les Grandes Caves Saint Roch
- L'Abbaye troglodytique de Saint-Roman
- Grotte de Saint-Vit
- Grotte de la Salamandre
- Troglodytes & Sarcophages
- Grotte Prehistorique de Sare
- Cuves de Sassenage
- Grotte et Canyon de Saulges
- Champignonnière du Saut-aux-Loups
- Grottes de Savonnieres
- Fort de Schoenenbourg
- Caverne Sculptée
- La grotte du Sdragonatu
- Grotte et cascade de Seythenex
- Site néolithique de Sigoniac
- Simserhof
- Siracourt VI Storage Bunker
- Société des Caves de Roquefort
- Grotte du Sorcier
- La Grotte de Soustelle
- Parcours Troglodytique Souzay-Champigny
- Grottes prehistoriques de Soyons
- La mine St Nicolas à Steinbach
- Grotte de Saint-Marcel d'Ardèche
- Grotte Taillerie du Puy de Dôme
- Champagne Taittinger
- Tellure
- La Mine Témoin
- Terra Vinea
- Grotte de Teyjat
- Grottes de Thaïs
- Les Hautes-Mynes du Thillot
- Le Thot
- Grotte de Thouzon
- Grotte de Tourtoirac
- Grottes de Trabuc
- Carrière de talc de Trimouns
- Troglododo
- Village Troglodyte de Trôo
- Grottes des Tunnels
- Préhisto Parc
- La Grotte de la Vache
- La Grotte de la Vache
- Mine du Val de Fer
- Pertes de la Valserine
- Mine de Sel Varangéville
- Fontaine de Vaucluse
- Veuve Clicquot
- Mines de Vielle Aure
- Carriere de Vignemont
- Demeure de la Vignole
- Grotte Prehistorique de Villars
- Villecroze Caves
- Chateau Villemaurine
- Vimy Memorial - Grange Tunnel
- Vulcania
- Mines d’Argent de Wegscheid
- Wellington Caves
- Grotte du Wolfloch
- Wolframines
- Zoo de Doué la Fontaine
Georgia29 entries
- Abano Mineral Lake Natural Monument
- Balda Canyon
- Chreli Abano
- Cracked Lake
- David Gareja
- Josef Stalin's Underground Printing House Museum
- Jvari Pass Travertine
- Kaghu Waterfall
- Karavanserai Bakery
- Keterisi Mineral Vaucluse
- Khareba Winery
- Khomuli Cave
- Martvili Canyon
- Meidan Bazar
- Motena Cave
- Navenakhevi Cave
- Novoafonskaya
- Okatse Canyon
- Prometheus Cave
- Sataplia Cave
- Satsurblia Cave
- Tetri Cave
- Tsutskhvati Cave
- Udabno
- Upliszikhe
- Vanis Kvabebi
- Vardzia
- Veryovkina
- Voronya pestera
Germany467 entries
- 19-Lachter-Stollen
- Aachquelle
- Feuersteinbergwerk von Abensberg-Arnhofen
- Aggertalhöhle
- Almbachklamm
- Besucherbergwerk Alte Hoffnung Erbstolln
- Bergbaumuseum Altenberg
- Altensteiner Höhle
- Alter Elbtunnel
- Alvensleben-Stollen
- Schaubergwerk Am Aschenberg
- Stollnsystem »Am Graben«
- Andreas-Gegentrum-Stolln
- Grube Anna-Elisabeth
- Arndthöhle
- Arnsteinhöhle
- Historisches Dachschieferbergwerk Assberg
- Schachtanlage Asse II
- Atomkeller
- Attahöhle
- Auerbachs Keller
- Aurora Erbstolln
- Bärenhöhle
- Balver Höhle
- Barbarastollen
- Barbarossahöhle
- Baumannshöhle
- Hoher Brunnen Berching
- Erlebnisbergwerk Berchtesgaden
- Heilstollen Berchtesgaden
- Bergmagazin Marienberg
- Berliner Unterwelten
- Besucherbergwerk Bertsch
- Eiskeller der Brauerei Beuing
- Saarländisches Bergbaumuseum Bexbach
- Bilsteinhöhlen
- Bilzingsleben
- Besucherbergwerk Grube Bindweide
- Binghöhle
- Birresborner Eishöhlen
- Blauer See
- Blautopf
- Grube Neue Hoffnung Bleialf
- Bocksteinschmiede
- Bodenloses Loch
- Silberberg Bodenmais
- Hessisches Braunkohle Bergbaumuseum Borken
- Breitachklamm
- Brenztopf
- Brillenhöhle
- Brunnsteinhöhle
- Buchenlochhöhle
- Höhlenburg Buchfart
- Schaubergwerk Büchenberg
- Kalimuseum Buggingen
- Bundesbank-Bunker
- Atombunker der Bundesregierung
- Bunkermuseum Emden
- Bunkermuseum Hamburg
- Bunkermuseum Rennsteig
- Besucherbergwerk Burgbergstollen
- Travertine of Burgtonna
- Carolinen Grube
- Besucherbergwerk Grube Catharina Neufang
- Charlottenhöhle
- Besucherbergwerk Grube Christiane
- Schieferbergwerk Grube Christine
- Grube Clara
- Schloß Colditz Escape Tunnels
- Zeche Consolidation
- Daneilshöhle
- David Hasselhoff Museum
- Dechenhöhle
- Deinhard Kellermuseum
- Deutsches Bergbau Museum
- Deutsches Bunkermuseum
- Deutsches Goldmuseum
- Deutsches Museum
- Abenteuer Bergwerk Bernsteinzimmer
- Diebeshöhle
- Karsthöhle Dienstedt
- Burghöhle Dietfurt
- Doktorshöhle
- Dolinenweg Hengen
- Donauversickerung
- Dorfbachklamm
- Dorotheastolln
- Eisenacher Drachenschlucht
- Dreieingangshöhle
- Drei Kronen & Ehrt
- Wasserfall Dreimühlen
- Schwerspatmuseum Dreislar
- Druidenhain
- Historisches Kuperbergwerk Düppenweiler
- Dunsthöhle
- Eberstadter Tropfsteinhöhle
- Egloffsteiner Felsenkeller
- Zinngrube Ehrenfriedersdorf
- Eichener See
- Einhornhöhle
- Eisenbreche Klamm
- Eisensteinstollen
- Eisinger Löcher
- Eiskapelle
- Elfengrotte
- Emilianusstollen
- Steinerne Rinne bei Erasbach
- Bergbau- und Heimatmuseum Erbendorf
- Erbendorfer Felsenkeller
- Karstlehrpfad Breitscheid-Erdbach
- Erdmannshöhle
- Bunker WH-767 “Erlkönig”
- Stollen Erwein II
- Tropfsteinhöhle Erzenhausen
- Esperhöhle
- Bunker Falkenhagen
- Falkensteiner Höhle
- Feengrotten
- Grube Feggendorfer Stolln
- Felicitas Heilstollen
- Besucherbergwerk Fell
- Felsendome Rabenstein
- Nürnberger Felsengänge
- Felsenkirche Idar-Oberstein
- Hemer Felsenmeer
- Finsteres Loch
- Besuchsbergwerk Finstergrund
- Schaubergwerk "Finstertal" Asbach
- Fischbach
- Fohlenhaus
- Forchheimer Keller
- Grube Fortuna
- Höhlenmuseum Frasdorf
- Stadt- und Bergbaumuseum Freiberg
- Schaubergwerk St. Anna am Freudenstein
- Friedrich-Wilhelm-Stollen
- Eisenerzbergwerk Frischglück
- Fürstenzeche
- Grüner Bräu Keller
- Führerbunker
- Silberstollen Gabe Gottes
- Atombunker Garzau
- Geissenklösterle
- Genovevahöhle bei Bell
- Genovevahöhle bei Kordel
- Förderturm der Grube Georg
- Geraer Höhler
- Der Karstwanderweg am Südharz
- Grube Glasebach
- Travertine Terrasses in the Glatt Valley
- Besucherbergwerk Gleißinger-Fels
- Schaubergwerk Frisch Glück Glöckl
- Quarzitbruch Glossen
- Schaubergwerk „Gnade Gottes Erbstollen“
- Göpfelsteinhöhle
- Besucherbergwerk Im Gößner
- Goetz-Höhle
- Götzingerhöhle
- Goldbergbaumuseum Goldkronach
- Besucherbergwerk Goldhausen
- Große und Kleine Golke
- Gottesackerplateau
- Besucherbergwerk Graf Wittekind
- Große Grotte
- Großer Lochstein
- Große Scheuer
- Gründelsloch
- Erlebniswelt am Grünten
- Bergbaumuseum und Besucherbergwerk Grube Günnersdorf
- Hilfskrankenhaus Gunzenhausen
- Gußmannhöhle
- Grube Gustav
- Gutenberger Höhle
- Mithrasgrotte
- Bunker Harnekop
- Hausertorstollen
- Besucherbergwerk "Heilige Drei Könige"
- Heimensteinhöhle
- Heimkehle
- Heinrichshöhle
- Heinrich-Kocher-Stollen
- Hella-Glück-Stollen
- Herbstlabyrinth-Adventhöhle-System
- Hermannshöhle
- Höhle auf dem Großen Hermannstein
- Schiefergrube Herrenberg
- Hickelhöhle
- Himmelfahrt Fundgrube
- Himmelsbergstollen
- Himmlisch Heer
- Höllentalklamm
- Höhlenkundliches Museum
- Hoffnungsstollen Todtmoos
- Hohenfels-Essinger Eishöhlen
- Hohlenstein
- Hohler Fels
- Hohler Stein bei Schambach
- Hollenkammer
- Schloßberghöhlen
- Hubertuskapelle
- Besucherbergwerk Grube "Hühn"
- Hülbener Tropfsteinhöhle
- Hungerbrunnen
- Bergbaumuseum Ibbenbüren
- Iberger Tropfsteinhöhle
- Idagrotte
- Ilsenhöhle
- Bergbauerlebniswelt Imsbach
- Johannisfelsen
- Internationales Fledermaus-Museum Julianenhof
- Jungfernhöhle
- Kahlensteinhöhle
- Kakushöhle
- Ausweichsitz Nordrhein-Westfalen
- Hohler Stein
- Kammerbacher Höhle
- Haus des Bergmanns
- Besucherbergwerk Kamsdorf
- Bunker am Kap Arkona
- Karl-May-Höhle
- Karstkundlicher Wanderweg Laichingen
- Kessler Kellerführungen
- Besucherbergwerk Kilianstollen
- Air Defense Operations Center Kindsbach
- König-Otto-Tropfsteinhöhle
- Kirnitzschklamm
- Kittelsthaler Tropfsteinhöhle
- Klausenhöhle
- Besucherbergwerk Kleinenbremen
- Bergbaumuseum "Kleiner Johannes"
- Kleinsteinhöhle
- Cave Church Klösterl
- Klosterstollen Barsinghausen
- Klusfelsen
- Kluterthöhle
- Lausitzer Bergbaumuseum Knappenrode
- Schachtanlage Knesebeck
- Besucherbergwerk in Bad Friedrichshall-Kochendorf
- Kocherursprung
- Kalkbergwerk am Königsberg
- Kolbinger Höhle
- Schacht Konrad
- Kristallgänge
- Graphitbergwerk Kropfmühl
- Kubacher Kristallhöhle
- Kuhstall
- Kulturbunker Barbarastollen
- Historischer Kunstbunker
- Kupferberg Museum
- Bergbau-Museum Kupferberg
- Bunker Ladeburg
- Laichinger Tiefenhöhle
- Landgrafenschlucht
- Felslabyrinth Langenhennersdorf
- Höhlenwohnungen in Langenstein
- Kupferschieferbergwerk Lange Wand
- Historisches Silberbergwerk Lautenthals Glück
- Lavakeller
- Technisches Denkmal Historischer Schieferbergbau Lehesten
- Leichtweißhöhle
- Eisenerzgrube Lengede-Broistedt
- Grube Leonie
- Liboriusklause
- Rimstone Pools of the Lillach River
- Linkenboldhöhle
- Lippoldshöhle
- Höhlenburg Loch
- Löwengrube
- Lonetopf
- Loneversickerung
- Ludwigshöhle
- Ludwigsklamm
- Lügenstein
- Luegstein Höhle
- Mansfeld Museum
- Besucherbergwerk Marie Louise Stolln
- Marienglashöhle
- Marienschlucht
- Markt Höhler
- Besucherbergwerk Markus Semmler
- Maximiliansgrotte
- Mayener Grubenfeld
- Höhler von Meerane
- Erlebnis Bergwerk Merkers
- Trassbergwerk Meurin
- Mittelbau Dora - Mittelwerk Dora
- Karstlehrpfad Monheimer Alb
- Schaubergwerk Morassina
- Mordloch
- Besucherstollen Morgenstern
- Mühlbachquellhöhle
- Spring von Mühlberg
- Mühlheimer Höhle
- Alaunwerk Mühlwand
- Zeche Nachtigall
- Goldbergwerk Name Gottes
- Neanderthal
- Nebelhöhle
- Neischlhöhle
- Neubulach - Hella-Glück-Stollen
- Karstkundlicher Wanderweg Neuhaus/Pegnitz
- Neustädtler Hobbybergwerk
- Niedaltdorfer Tropfsteinhöhle
- Die historische Grotte in den Herrenhäuser Gärten
- Nixseebecken
- Eisenerzgrube Nothweiler
- Oberharzer Bergwerksmuseum
- Bergbau- und Mineralienmuseum Oberwolfach
- WISMUT Objekt 90
- Wasserbaum von Ockensen
- Bergbaumuseum Oelsnitz
- Ofnethöhlen
- Olgahöhle
- Oppenheimer Kellerlabyrinth
- Museum Industriekultur Osnabrück
- Bergbau- und Industriemuseum Ostbayern
- Osterhöhle
- Hüttenstollen Osterwald
- Oswaldhöhle
- Ottensee
- Grube Otto
- Parkhöhle Weimar
- Partnachklamm
- Pegnitzquelle
- Bergbaumuseum Peißenberg
- Peniger Kellerberggänge
- Pferdegöpel auf dem Rudolphschacht
- Besucherbergwerk Philippstollen Olsberg
- Spring von Plaue
- Alaunbergwerk Ewiges Leben Plauen
- Poppenröder Quelle
- Pützlöcher
- Quackenschloß
- Rabensteiner Stollen
- Rammelsberg
- Besucherbergwerk Ramsbeck
- Schieferschaubergwerk Raumland
- Reckenhöhle
- Burg und Festung Regenstein
- Reichhartschacht
- Reinhold Forster Erbstollen
- Rhumequelle
- Riesenburg
- Rischbachstollen
- Besucherbergwerk "Markus-Röhling-Stolln"
- Bergbaumuseum Röhrigschacht
- Steinerne Rinne bei Rohrbach
- Bergbaumuseum Ronneburg
- Rosenmüllerhöhle
- Lehrbergwerk Grube Roter Bär
- Eishöhle bei Roth
- Feste Rothenberg
- Rudolf-Stollen
- Saarbrücker Kasematten
- St. Salvator
- Salzaspring
- Salzgrabenhöhle
- Grube Samson
- Grube Schauinsland
- Schellenberger Eishöhle
- Schertelshöhle
- Schillathöhle
- Schillerhöhle
- Schinderhanneshöhle
- Museum Uranbergbau Schlema
- Schloß Stein
- Schmiechquelle
- Schmiecher See
- Schmittenstollen
- Schmutzlerzeche
- Scholmzeche - Aufrichtigkeit
- Schopflocher Moor
- Großes Schulerloch
- Schwandorfer Felsenkeller
- Bergbaumuseum Schwarzer Crux
- Segeberger Kalkberghöhle
- Grube Segen-Gottes
- Segen-Gottes-Erbstolln
- Sieben-Täler-Höhle
- Silbergründle
- Grube Silberhardt
- Historisches Schmucksteinbergwerk Silberschacht
- Sirgensteinhöhle
- Erlebnisbergwerk Sondershausen
- Sontheimer Höhle
- Sophienhöhle
- Stahlberger Erbstollen
- St. Anna Fundgrube
- Grubenanlage "St. Briccius"
- Besucherbergwerk „St.-Christoph“
- Heimat- und Braunkohlemuseum Steinberg am See
- Steinernes Haus
- Historische Edelsteinminen im Steinkaulenberg
- Steinkirche
- St. Gideon Erbstollen
- St. Lampertus Fundgrube
- The Story of Berlin
- Sturmannshöhle
- Silberbergwerk Suggental
- Bergbaumuseum Sulzburg
- Syrauer Drachenhöhle
- Grube Tannenberg
- Teufelshöhle
- Teufelshöhle
- Besuchsbergwerk Teufelsgrund
- Teufelsschlucht
- Gruben- und Feldbahnmuseum Zeche Theresia
- Tiefer Molchner Stollen
- Tiefer Stollen
- Tiergartentunnel
- Tonbergbaumuseum Westerwald
- Brunnenstollen Trippstadt
- Tschamberhöhle
- Erdöl-Erdgas-Museum Twist
- Überlinger Stollen
- Ulmer Museum - Archaeological Collection
- Centre for International Light Art
- Uracher Tropfsteinhöhle
- Uracher Wasserfall
- Urgeschichtliches Museum in Blaubeuren
- Urspring
- Veitensteinhöhle
- Erlebnisbergwerk Velsen
- Vestenburger Stollen
- Villa Fliedner
- Vogelherdhöhlen
- Vogelherdgrotte
- Vogts Grub
- Volkmarskeller
- Volle Rose
- Vulkan Brauerei
- Wachsender Felsen
- Sandsteinhöhle in Walldorf
- Schaubergwerk "Herkules-Frisch-Glück" Waschleithe
- Nürnberger Wasserstollen und Kasematten
- Webergrotte
- Weber an der Wand
- Kanaltunnel Weilburg
- Besucherbergwerk Fundgrube Weißer Hirsch
- Wendelsteinhöhle
- Grube Wenzel
- Westwallmuseum Pirmasens
- Westwallmuseum Irrel
- Besucherbergwerk Wetzsteinstollen
- Wiehler Tropfsteinhöhle
- Deutsches Erdölmuseum Wietze
- Wille Gottes Thalheim
- Wimbachklamm
- Friedrichshöhle - Wimsener Höhle
- Besucherbergwerk Wismutstolln
- Grube Wohlfahrt
- Steinerne Rinne bei Wolfsbronn
- Wolfsschlucht
- Bunker Wollenberg
- Bunkerpark Wünsdorf
- Wulfbachquellhöhle
- Wundershöhle
- Industriemuseum Zeche Hannover
- Unterirdisches Zeitz
- Besucherbergwerk Zinnkammern Pöhla
- Besucherbergwerk Zinnwald
- Zinselhöhle
- Zeche Zollverein
- Zoolithenhöhle
- Besucherbergwerk Zschopau
- Zwergenkirche
- Zwiefaltendorfer Tropfsteinhöhle
Great Britain245 entries
- Aberdeen Maritime Museum
- Almond Valley Heritage Centre
- Amlwch Copper Kingdom
- Anchor Church
- The Angel Microbrewery Cave
- Apedale Mine
- Ardlair Cave
- Astley Green Colliery Museum
- Bagshawe Cavern
- Banwell Bone Caves
- Battle of Britain Control Room
- Beamish Museum
- Beer Quarry Caves
- Bellingham Heritage Centre
- Bell Inn Caves
- Bersham Colliery
- Big Pit
- Birkhill Caverns Clay Mine
- Black Country Living Museum
- Blair Street Underground Vaults
- Blue Hills Tin Streamers
- Blue John Cavern
- Bone Cave
- Bounce Below
- Brighton's Victorian Sewer
- Brimble Pit and Cross Swallet Basins
- Bruce's Cave
- Bullers of Buchan
- Burlington
- Cabinet War Rooms
- Café in the Crypt
- Caldecotte Project
- Carmel National Nature Reserve
- Carnglaze Slate Caverns
- Carreg Cennen Castle Caves
- Cathedral Cave
- Cat Hole Cave
- Cave Escape Nottingham
- Cavern Club
- Cefn Coed Colliery Museum
- Channel Tunnel
- Chatterley Whitfield Mining Museum
- Cheddar Caves & Gorge
- Cheddar Gorge
- Chislehurst Caves
- Church Cave
- Paddock - Churchill's Secret Bunker
- Clearwell Caves
- St. Clements Caves
- Corris Mine Explorers
- Cove Cave
- Creswell Crags
- Crowborough Caves
- Cruachan Power Station
- Culver Hole
- St Cuthbert's Cave
- Dan-yr-Ogof - National Showcaves Centre for Wales
- Dead Man's Cave
- Devil's Punchbowl
- Dewstow Gardens and Grottoes
- Dolaucothi Gold Mine
- Dorking Caves
- Dragon Hall Undercroft
- Drakelow Tunnels
- Dudley Canal Tunnels
- Dunaskin Open Air Museum
- Durham Mining Museum
- Tomb of the Eagles
- Earby Mining Museum
- Eastwater Cavern
- Ebbor Gorge
- Ecton Mine Educational Centre
- Electric Mountain Visitor Centre
- Essex Secret Bunker
- Euston Lost Tunnels
- Exeter's Underground Passages
- Fern and Roman Caves
- St Fillan's Cave
- Fingal's Cave
- Finnich Glen
- Florence Mine Heritage Centre
- Fort Amherst Tunnel Tour
- Gaping Ghyll
- Geevor Tin Mine
- German Underground Hospital
- German Military Underground Hospital
- German Naval Signals Headquarters
- Giant's Cave
- Gilmerton Cove
- Go Below Underground Adventures
- Goodluck Mine
- Great Masson Cavern
- Great Orme Bronze Age Copper Mines
- Great Rutland Cavern
- Greenwich Foot Tunnel
- Grimes Graves
- Guildhall Medieval Crypt
- Hack Green Secret Nuclear Bunker
- Haig Colliery Mining Museum
- Halliggye Fogou
- Hand and Heart
- Hard Rock Vault
- Hawkstone Park
- Hellfire Corner
- Herts Young Mariners Base
- Honister Slate Mine
- Hopewell Colliery
- How Stean Gorge
- Humphrey Kynaston's Cave
- Ingleborough Cave
- Ironbridge Gorge Museum
- Ye Olde Trip to Jerusalem
- Jurnet's Bar
- Kelly Mine
- Kelvedon Hatch Secret Nuclear Bunker
- Kents Cavern
- Keswick Mining Museum
- Killhope Lead Mining Museum
- King's Cave
- King Arthur's Labyrinth
- King Arthur's Cave
- King Edward Mine
- Kinver Edge Rock Houses
- Kitley Show Cave
- La Valette Underground Military Museum
- Laxey Wheel
- Lewis Merthyr Colliery
- Lion Salt Works
- The Welsh Slate Museum
- Chwarel Hên Llanfair
- Llechwedd Slate Cavern
- Llewelyn's Cave
- Llywernog Silver-Lead Mine Museum
- London Underground
- Lost Caves
- Lud’s Church
- Lydford Gorge
- Lydstep Caverns
- Maeshowe
- Victorian Music Hall Malt Cross
- Margate Caves
- Margate Grotto
- Mary King's Close
- Merlin's Cave
- Millican Daltons Cave
- Mine Howe
- Minera Lead Mines
- Morwellham Quay
- Mother Shipton's Cave
- National Coal Mining Museum for England
- National Justice Museum
- Nenthead Mines Heritage Centre
- Netherton Tunnel Branch Canal
- St Ninian's Cave
- Noirmont Command Bunker
- Norwich Guildhall Crypt
- City of Caves
- Nottingham Castle Cave Tours
- Museum of Nottingham Life
- National Stone Centre
- Odin Mine
- Uamh an Oir
- Ossian's Cave
- Ossian's Cave
- Ossian's Cave
- Painshill Park's Crystal Grotto
- Pant y Llyn
- Park Tunnel
- Paviland Cave
- Peak Cavern
- Pleasley Colliery
- Polchar Cave
- Poldark Mine
- Poole's Cavern
- Pooley Hall Colliery
- Porthcurno Telegraph Museum
- Porth yr Ogof
- Redcliffe Caves
- The Reigate Caves
- Rhydymwyn Valley Works
- The Rock Gardens
- Rosevale Mine
- Royston Cave
- Ye Olde Salutation Inn
- Scotland's Secret Bunker
- Scott's Grotto
- Scottish Mining Museum Trust
- Sculptor's Cave
- Shunt
- London Silver Vaults
- Skirwith Cave
- Slough Caverns
- Smoo Cave
- Snailbeach Lead Mine
- Snibston Discovery Museum
- South Crofty Mine
- South Wales Miners' Museum
- Spar Cave
- Speedwell Cavern
- Standedge Tunnel
- St Andrew's Hall Undercroft
- St Anthony's Well
- St Cuthbert's Swallet
- St Margaret's Cave
- St. Michael's Caves
- St Peter's Bunker Museum
- Stump Cross Caverns
- Sygun Copper Mine
- Take 5 Bar
- Tankerville Mine
- Tar Tunnel
- Temple Mine
- The Bunker
- The Crypt
- Thor's Cave
- Threlkeld Quarry and Mining Museum
- Tilly Whim Caves
- Cleveland Ironstone Mining Museum
- Tomnadashan Mine
- Tom Taylor's Cave
- Treak Cliff Cavern
- Tregiffian Burial Chamber
- Uamh-an-Righ
- Victoria Tunnel
- Wanlockhead Museum
- Washington 'F' Pit Industrial Museum
- Watermouth Caves
- Weathercote Cave
- Weathercote Cave
- Weaver Hall Museum and Workhouse
- Wemyss Caves
- Western Approaches Command Centre
- West Norwood Cemetery Catacombs
- West Wycombe Caves
- White Scar Cave
- Williamson's Tunnels
- Winding House
- Philp's Cave
- Wogan Cavern at Pembroke Castle
- Woodhorn Colliery
- Wookey Hole
- Wurt Pit and Devil's Punchbowl
- Yordas Cave
- Yordas Cave
- Zigzag Path
Greece114 entries
- Spilia Agia Paraskevi - Aghia Paraskevi Cave
- Agia Paraskevi
- Spilea Agia Sophia - St Sophia's Cave (Kythira)
- Spilea Agia Sophia - St Sophia's Cave (Crete)
- Spilia Agio Gala
- Spilaio to Agiou Antoniou
- Cave of Agios Dionysios
- Spilaio Agios Georgios
- Agios Georgios Mandelas's Cave
- Iepa Moni Agios Gerasimos
- Spilia Ag Ioánnis Erimitis - Hermits' Cave of Saint John
- Spilia Áyios Ioánnis Iráklia
- Spilia O'Ag Ioannis Kastro - St John's Hermit Cave
- Spilia Áyios Ioánnis at Marathokefala
- Agios Ioannis Damialis Cave
- Spilaio Agios Mamas - Agios Mamas Cave
- Alepotrypa
- Alexander's Cave Houses
- Spilaio Alistratis - Alistrati Cave
- Almyros Spring
- Almyros Ag. Nikolaou
- Spilaio Anemotrypa
- Antiparos
- Cave of the Apocalypse
- Argyroupoli Springs
- Brachoskepi Asprochaliko
- The Treasury of Atreus
- Bekiris Cave
- Corfu Cave Tour
- Cave of Cyclops
- Daveli's Cave
- Didyma Caves
- Diktaion Antron
- Diktaeon Cave
- Cave Of The Dragon Kastoria
- Drakospilia
- Spilaio Drogkarati
- Edessa Waterfalls Cave
- Spilea Ellinokamára - Ellinokamára Cave
- Tunnel of Eupalinus
- Cave of Euripides
- Caves of Filopappou Hill
- Foros Cave
- Spilaion Frahthi - Frahthi Cave - Franchthi Cave
- Galazia Spiliá - Blue Grotto
- Galázia Spiliá
- Galázia Spiliá - Blue Grotto - Korithi Cave
- Spilaion Gerani
- Glifada
- Gouvernéto Cave - Bears' Cave
- Ta Spilia Harakas
- Spilia Harkadio - Harkadio Cave
- Idaion Antron
- Spilia Illithias - Cave of Ilithias
- Limni Ioanninon - Lake Pamvotis
- Ipapanti Monastery
- Kamarai Gorge
- Spilaio Kamares - Cave Kamaron - Kamares Cave
- Kapsia Cave
- Kastania Cave
- Spilaio Kastritza - Kastritsa Cave
- Katafiki Cave
- Spilia Katafygi
- Katavothres - Katabothres
- Katavothres
- Trypas Kefalas - Cave of Kefala
- Kipina Monastery
- Korykio Andro - Corycian Cave
- Kourtaliotiko Gorge
- Spilia Koutouki - Koutouki Cave
- Loizos Cave
- Spilaio Aggitis
- Marmarospilia
- Matala Caves
- Mavri Spilia - Black Cave
- Mavri Spilia - Black Cave
- Megali Spilia
- Mega Spiléo - The Great Cave
- Spilaio tou Melidoniou
- Limni Melissani
- Milatos Andron
- Monks' Prison
- Cistern of Ancient Mycenae
- Necromanteion of Ephyra
- Spílio tou Nestóros - Nestor's Cave
- Spilia Olimbi
- Panagia Spiliani
- Panagia Spiliani
- Panagria Hrysospiliotissa
- Papanikolís Cave
- Spilaio sta Pelekita - Sikias Spilios - Cave of Pelekita
- Spelaio Peramatos - Perama Cave
- A Visit of Perama Cave
- Spilaio Petralona - Kókkines Pétres
- Cyclop's Cave
- Samaria Gorge
- Spilaio Sphentoni
- Spilia Epta Parthena
- Limni Stymphalia
- Lake Taka
- Theopetra Cave
- Therissou Gorge
- Acropolis of Ancient Tiryns
- Spelaio Ton Limnon
- Catacombs at Trípiti
- Vagonetto
- Vari Cave
- Cave of Saint Barbara
- Spilaio tou Vathis
- Farángi Vikou
- Voulismeno Aloni
- Vouraikos Gorge
- Xyngia Cave
- Monastery of the Assumption of the Lord
Guam2 entries
Guatemala31 entries
- Cuevas de Actún Kan
- Cuevas de Andá Mirá
- Cueva de B'omb'il Pek
- Laguna Brava
- Candelaria Caves
- Cenotes de Candelaria
- La Caverna de Chicoy
- Hoyo El Cimarrón
- Las Cuevas de la Cobanerita
- Las Conchas
- Grutas de Cunén
- Grutas el Encanto
- Laguna Encantada
- Finca Ixobel River Cave Trip
- Jobitzinaj Cave
- Las Cuevas de K'an Ba
- Laguna Lachua
- Lanquín Caves
- Balneario Las Pozas
- Los Nacimientos
- Cueva de Las Minas
- Naj Tunich
- Cuevas El Resumidero
- Grutas del Rey Marcos
- Nacimiento del Río Lanquín
- Cuevas SaMucuy
- Semuc Champey
- Cuevas de Se'tzol
- Cuevas del Tigre
- Grutas de Uaxactún
- Utatlan Cave
Haiti3 entries
Honduras10 entries
Hungary43 entries
- Abaligeti-barlang
- Ajkai Bányászati Múzeum
- Anna Barlang
- Balás Jenő Bauxitbányászati Múzeum
- Baradla Barlang
- Béke-barlang
- Cserszegtomaj barlang
- Csodabogyós-barlang
- Csolnoki Bányászklub Múzeum
- Diósgyör-Tapolca barlang
- Esztáz-kői-barlang
- Fertőrákosi Barlangszínház
- Cave Church at Gellért Hill
- Görbehalmi Bányamúzeum
- Istállós-kői-barlang
- Jankovich-barlang
- Kőbányai pincerendszer
- Budavári Labirinthus
- Lóczy barlang
- Magyar Olaj- és Gázipari Múzeum
- Mátyáshegy barlang
- Mecsek Bányászati Múzeum
- Mészégető-forrásbarlang
- Millennium Underground Museum
- Miskolc-Tapolca
- Farkaskői Alkotótelep
- Oroszlány Bányász Múzeum
- Pálvölgyi Barlang
- Pelion barlang
- Rákóczi barlang
- Sátorkőpusztai-barlang
- Solymári ördöglyuk-barlang
- Sopron Bányászati Múzeum
- Sötétkapu
- Szelim-barlang
- Szemlö-Hegy Barlang
- Sziklakórház Múzeum
- Szt. István Barlang
- Tapolcai Tavasbarlang
- Tettyei Mésztufa-barlang
- Trio barlang
- Var Barlang
- Vass Imre barlang
Iceland30 entries
- Dyrhólaey
- Gatklettur
- Gjabakkahellir
- Grjótagjá
- Gýgagjá
- Hálsanefshellir Cave
- Caves of Hella
- Hellnahellir
- Hundraðmannahellir
- Katla Ice Cave
- Kverkfjöll
- Kvernufoss
- Landmannahellir
- Langjökull Glacier Grotto
- Leiðarendi
- Litli Björn - Vörðuhellir
- Páskahellir
- Rauðfeldsgjá
- Raufarhólshellir
- Reykjavik 871±2
- Seljalandsfoss
- Sönghellir
- Surtshellir-Stefánshellir system
- þakgilshellir
- Thrihnukagigur
- Tintron Cave Tour
- UnderWorld
- Vatnajökull Glacier Crystal Cave
- Vatnshellir
- Hellirinn Vidgelmir
India70 entries
- Aihole
- Ajanta Caves
- Amarnath Cave
- Arjun Gufa
- Aurangabad Caves
- Badami Cave Temple
- Bagh Caves
- Barabar Caves
- Bava Pyara Caves
- Bedsa Caves
- Belum Caves
- Bhaja Caves
- Bhandara Buddhist Caves
- Bhartrihari Caves
- Bhimbetka
- Bhimkund
- Patal Bhuvaneshvar
- Borra Caves
- Chalukyan Caves
- Dandak Gufa
- Dhank Caves
- Dobakhol
- Dungeshwari
- Edakkal
- Elephanta Caves
- Ellora Caves
- Gavi Gangadhareswara
- Ghorawadi Caves
- Guhantara
- Gupteswar Gupha
- Huligemmana Kolla
- Junagadh Caves
- Junkundar Coal Mine
- Kailash Gufa
- Kanheri Caves
- Karla Caves
- Khandagiri Cave
- Caves of Khandepar
- Khangkhui Mangsor
- Khapra Kodiya Caves
- Kolar Gold Fields
- Kondhane Buddhist Caves
- Kuda Mandad Caves
- Kutumsar Gufa
- Lamgao Buddhist Caves
- Mahabalipuram Caves
- Mahakali Caves
- Mahendravadi Cave Temple
- Krem Mawsmai
- Nagarjuna Caves
- Pandava Caves
- Pandavleni Caves
- Parvati Buddhist Cave
- Pataleshwar Cave Temple
- Phugtal Gompa
- Pitalkhora Caves
- Punarjani Guha
- Rivona Caves
- Robber's Cave
- Shankargarh Caves
- Son Bhandar Caves
- Tharon Cave
- Udaigiri Caves
- Undavalli Caves
- Uperkot Caves
- Vaishno Devi
- Vashistha Gufa
- Vettuvan Koil Temple
- Xavier Cave
- Yana Rocks
Indonesia22 entries
- Goa Asri
- Batu Cermin Cave
- Cerme Cave
- Goa Gajah
- Gua Gelatik
- Goa Giri Putri Temple
- Goa Gong
- Goa Jepang Klungkung
- Goa Jomblang
- Goa Kalisuci
- Goa Lawah
- Goa Lawa Purbalingga
- Liang Bua Cave
- Goa Lowo Trenggalek
- Lubang Jepang
- Gua Pindul
- Rangko Cave
- Sawahlunto Coal Mine Museum
- Guha Siluman
- Goa Tanding
- Tukad Cepung Waterfall
- Goa Watu Joglo
Iran26 entries
- 3N Cave - Namakdan Cave
- Ghar-e-Ali Sadr
- Amir Chakhmaq Complex
- Big Salt Cave
- Chal-Nakhjir
- Crystal Cave
- Darband Cave
- Do-Ashcaft Cave
- Hilehvar Buried Village
- Huto and Kamarband Cave
- Kandovan
- Karaftu Cave
- Ghar Katalehkhor
- Kish Underground City
- Niasar
- Underground City of Nushabad
- Ghar-e-Qūrī Qal'eh
- Rainbow Cave
- Ravansar Spring
- Sahoolan Cave
- Salt Goddess
- Sangtarashan Cave
- Shapoor
- Shesh Badgir Ab Anbar
- West Salt Cave
- Xarbes Caves
Ireland31 entries
- Aillwee Cave
- Arigna Mining Experience
- Brierfield Turlough
- Bruce's Cave
- Carran Turlough
- Castleplunkett Turlough
- Giant's Causeway
- Cave Hill
- Cove Cave
- Crag Cave
- Curraghmore House
- Doolin Cave
- Dunmore Caves
- Fardrum Lough, Roosky Lough, and Green Lough
- Lough Funshinagh
- Glenamaddy Turlough
- Glengowla Mines
- Gort River
- Caves of Keshcorran
- Liss Ard
- Loughareema
- Marble Arch Caves
- Mewlaghmore Dolines
- Mitchelstown Cave
- Newgrange
- Ogulla Spring
- Oweynagat - Cave of Crúachu
- Oweynagolman Cave
- St. Colman's Cell
- Turloughmore
- White Fathers Cave
Israel47 entries
- Absalom's Tomb
- Bīr al-Anezīya
- Church of the Annunciation
- Beit She'arim National Park
- Bell Caves
- Tomb of Benei Hezir
- Benshoof Cistern Museum
- Subterranean Crusader City
- Deir Muqallik
- Ein Gedi
- Elijah’s Cave
- Flour Cave
- Grotto of Gethsemane
- Haritun Cave
- Harod Spring
- Hazan Caves
- Hezekiah's Tunnel
- King Solomon's Mines
- Luzit Caves
- Ma'arat HaMachpelah
- Maresha
- Milk Grotto Chapel
- Nahal Me’arot Caves
- Grotto of the Nativity
- Cave of Nicanor
- Panias Spring
- Tomb of the Prophets
- Qumran Caves
- Cave of Rabbi Shimon bar Yochai
- Rosh haNikra
- Greek Orthodox Church of Saint Gabriel
- Sedom Cave
- Shem Va'Ever Cave
- Shimshon Cave
- King Solomon's Quarries
- Sorek Cave
- St. George Monastery
- St. Joseph's Church
- The Templars Tunnel
- Monastery of the Temptation
- Te'omim Cave
- Cave of Treasures
- Tomb of the Virgin Mary
- Warren's Shaft
- Well of Souls
- The Western Wall Tunnels
- Tomb of Zechariah
Italy345 entries
- Museo Minerario di Abbadia San Salvatore
- Grotta di Acquasanta
- Gole dell'Alcantara
- Museo dei Minerali Elbani "Alfeo Ricci"
- Lago di Andalo
- Grotta dell'Angelo
- Casa Grotta Antica Matera
- Arco Naturale
- La grotta delle Arene Candide
- Miniere di Argento Vivo
- La Grotta dell' Arsenale
- Museo dell'Arte Mineraria
- L'Astore Masseria
- Grotta Azzurra
- Miniera della Bagnada
- Miniera di Amianto di Balangero e Corio
- Grotte di Balzi Rossi
- Basiliani Hotel
- Grotta dei Beati Paoli
- Grotte di Beatrice Cenci
- Orrido di Bellano
- Grotte di Belverde
- Bletterbachschlucht
- Grotte Di Borgio Verezzi
- Il Borgo Ritrovato
- Grotta di Bossea
- Bottini
- Miniera d'Oro di Brusson
- Buco di Viso
- Grotta di Bue Marino
- Burkhardklamm
- The Caves of the Bussento River
- Gouffres des Busseraille
- Miniera di Zolfo Cabernardi
- Grotte del Caglieron
- Calcata Cave Houses
- Miniera di Calceranica
- Città sotterranea di Camerano
- Grotta del Cammello
- Covolo di Camposilvano
- Grotta del Cane
- Museo del Capitolo di San Lorenzo
- Museo delle Miniere di Capoliveri
- Catacombe dei Cappuccini
- Chiesa del Cappuccino Vecchio
- Grotta di Carburangeli
- Casa Cava
- Casa Cisterna Sotterranea
- La Casa di Lucio
- Storica Casa Grotta di Vico Solitario
- Casa Grotta del Casalnuovo
- Grotta di Castelcivita
- Grotte di Sant'Anna Castelfidardo
- Grotta di Castellana
- Grotta di Castello Tesino
- Catacombe Roma - The Catacombs of Rome
- Grotta del Caudano
- Cava 177
- Grotta del Cavallone
- Caveoso Hotel
- Museo della Miniera e del Territorio Cavriglia
- Cento Pozzi
- Cisterne Romane Amelia
- Cunicoli di Claudio
- Cloaca Maxima
- Grotta di Cocceio
- La Miniera Di Cogne
- Grotta di Collepardo
- Colosseum
- Museo della Civiltà Contadina
- Grotte Conturines
- Grotta Conza
- Antro del Corchia
- Cripta duomo Città di Castello
- Cripta Basiliana di San Michele
- Molinetto della Croda
- Cuma - Antro della Sibilla
- Damanhur Temple
- Miniere di Darzo
- Pozzo del Diavolo
- Caverna del Dio Mithra
- Miniere di Dossena
- Grotta dei Dossi
- Grotta della Dragonara
- Grotte di Equi Terme
- Museo Faggiano
- I Faraglioni
- Grotta del Farneto
- Cisterne Romane Fermo
- Grotta del Fico
- Grotta Fioravante
- Sorgente Fiumelatte
- Parco Minerario Floristella Grottacalda
- Cisterna della Fontana del Calamo
- Cimitero delle Fontanelle
- Criptoportico Forense
- La Fornace di Barbablù
- Tomba Francois
- Frantoi Ipogei di Grottaglie
- Frantoio Ipogeo Granafei
- Frantoio Ipogeo Caffa
- Grotta Grande del Vento - Grotte di Frasassi
- Tempio del Valadier - Santa Maria di Frasassi - Infrasaxa - Grotte di Frasassi
- Miniera Gambatesa
- Sea Caves of the Gargano
- Parco Minerario Naturalistico di Gavorrano
- Grotta del Gelo
- Grotta del Genovese
- Museo dei Minerali della Gente di Rio
- La Grotta Dei Germogli
- Grotta Gigante
- Gilfenklamm
- Grotta Giusti Terme
- Ecomuseo Miniere di Gorno
- Parco Naturale del Rio Grassano
- Gravina Sotterranea
- Miniera d'Oro della Guia
- Grua va Hardömbl
- Galleria Henry
- Hotel Sassi Di Matera Diffuso
- Le Cisterne ed il Palombaro dell’Hotel Il Belvedere
- Grotta dell'Onferno
- Grotte Is Janas
- Cava d'Ispica
- Voragine di Ispinigoli
- Grotte Is Zuddas
- Grotta della Gavetta e Grotta del Pilone
- Kleine Berlin
- Castello di Mezzocorona
- Grotta di Labante
- Lago di Telese
- Lama La Vita
- Grotta Lamalunga
- Grotta dei Lamponi
- La Thuile Mine
- Latomie
- Grotta di S. Angelo di Lettomanoppello
- Lucca City Walls Basement
- Museo Mineralogico Luigi Celleri
- Museo di Speleologia Luigi Fantini
- Lupercale
- Grotta della Madonna
- Madonna della Grotta
- Santuario della Madonna della Grotta di Bombile
- Santuario della Madonna della Grotta
- Chiesa Cripta Madonna della Grotta
- Madonna della Corona
- Madonna delle Virtù
- Farmacia del Mago Greguro
- Grotta Maona
- Grotta di Maratea
- Ristorante Grotta Marinara
- Miniera Marzoli
- Rifugio Antiaereo Martana
- Museo della Miniera Massa Marittima
- Museo di Arte e Storia delle Miniere
- Miniera di Masua
- Materasum Ipogeo
- Grotta Matromania
- Grotte delle Meraviglie
- Pozzo del Merro
- Balma del Messere
- Museo dei Minerali Elbani
- Grotta del Miracolo
- Mithraeum
- Mithraeum San Clemente
- Pulo di Molfetta
- Parco Minerario del Monte Amiata
- Grotta del Monte Capriolo
- Museo delle Miniere di Montecatini
- Grotta di Monte Cucco
- Grotta del Monte Ermada
- Miniera Monteponi
- Grotta del Monte Querceto
- Monte Sant'Angelo sul Gargano
- Miniera Montevecchio
- Grotta di Montevicoli
- Matera Olive Oil Museum
- Morgia Sant'Angelo
- Museo delle Miniere di Morgnano
- Valle dei Mulini
- Museo civico archeologico del Distretto minerario
- Museo della Scultura Contemporanea Matera
- Museo del Sottosuolo Napoletano
- Napoli Sotterranea
- Miniera di Naracauli
- Narni Sotterranea
- Neronian Cryptoporticus
- Grotte di Nettuno
- Parco Fluviale Novella
- Grotta Nuova
- Grotte di Oliero
- La Grotta dell'Orso
- Orvieto
- Grotte di Osimo
- Grotta di San Michele
- Grotta Paglicci
- Grotta Palazzese
- Mitreo di Palazzo Barberini
- Grotta di Pale
- Palombaro Lungo
- Grotta delle Palombe
- Grotta di Pastena
- Cripta del Peccato Originale
- Grotta dell'Angelo
- Minimetrò Perugia
- Cava del Piastraio
- Piccola Miniera Gl.ost srl
- Chiesetta di Piedigrotta
- Buco del Piombio
- Piscina Mirabilis
- Grotta della Poesia
- La Grotta di Polla
- Underground Basilica of Porta Maggiore
- La dolina Pozzatina
- Pozzo della Cava
- Miniera di Raibl
- Besucherbergwerk Prettau
- Parco Minerario Cortabbio di Primaluna
- Progetto Sinkhole
- Pulicchio di Gravina
- Il Pulo
- Deep Valley of Pulsano
- Grotta dei Puntali
- Puri di monte Pugliano
- Qanat Gesuitico Alto
- Qanat Gesuitico Basso
- Qanat di Palermo
- La Raccolta delle Acque
- Galleria Ravaccione
- Grotte di Rescia
- Miniere dei Resinelli
- Re Tarquinio
- Grotta del Re Tiberio
- Dolina del Revotano
- Ridnaun
- Grotta di Rio Martino
- Rocca Paolina
- Riparo di Romito
- Miniera di Rosas
- Sacro Speco
- Miniere di Saint-Marcel
- La Salata Necropoli Paleocristiana
- Gole del Salinello
- Miniera Sant'Aloisio
- Eremo di San Bartolomeo in Legio
- Eremo di San Cataldo
- Eremo di S. Colombano
- Grotta San Francesco
- Catacombe di San Gaudioso
- Catacombe di San Gennaro
- Grotta di S. Giovanni di Domusnovas
- San Giovanni d'Antro
- Eremo di San Leonardo
- San Lorenzo Maggiore
- Locanda di San Martino
- Grotta di San Michele
- Grotta di S.Michele Arcangelo
- Grotta San Michele
- Grotta di San Michele
- Grotta dell'Angelo
- Grotta San Michele
- Grotta di San Michele Arcangelo
- Grotta di San Michele
- Eremo di San Michele
- San Michele delle Grotte
- San Michele
- San Michele Arcangelo
- Santuario San Michele
- Grotta di San Michele Arcangelo
- San Pietro Barisano
- San Pietro Barisano Residence e Ristorante
- Parco Archeominerario di San Silvestro
- Grotta di Santa Barbara
- Chiese Rupestri di Santa Barbara
- Grotte di Santa Croce
- Museo delle Miniere Santa Fiora
- Chiesa di Santa Lucia alle Malve
- Santa Maria della Nova
- Santa Maria de Idris
- Grotta di Sant’Angelo Muxaro
- Grotta di Sant'Angelo
- Sant'Angelo in Vetulis
- Sant'Angelo
- Monte Sant'Angelo
- Sant'Angelo Le Ripe
- Grotta Sant'Angelo
- Grotta di Santa Ninfa
- Santa Prisca Mithraeum
- Eremo di Sant'Onofrio
- Eremo di Sant'Onofrio al Morrone
- Pozzo Santullo
- Sa Rocca
- Hotel Sassi
- Terme di Saturnia
- Miniera Schilpario
- Schneeberg Passeier
- Grotte di Sciacca
- Museo del Carbone della Grande Miniera di Serbariu
- Sextantio Albergo Diffuso Le Grotte Della Civita
- Lago Sfondato
- Miniera del Siele
- Lago Sirino
- Grotta dello Smeraldo
- Grotte del Sogno
- Bunker Soratte
- Speco di San Francesco
- Castello di Sperlinga
- Grotta della Spipola
- Bergbaumuseum Steinhaus
- La Grotta di Stiffe
- Su Mannau Grotte
- Grotta di Su Marmuri
- Grotta della Tanaccia
- Grotta Tanella
- Miniera del Temperino
- L'Osteria del Tempo Perso
- Mitreo delle Terme del Mitra
- Sorgenti del Timavo
- Parco Gola del Tinazzo
- Tiscali
- Grotta Toddeitu
- Todi Sotterranea
- Grotte di Toirano
- Grotta Delle Torri Slivia
- Museo delle miniere di Traversella
- Grotta dei Tre Livelli
- Grotta del Trullo
- Museum Ladin Ursus ladinicus
- Ecomuseo delle Miniere e della Val Germanasca
- Centro Minerario di Valle Imperina
- Parco Minerario della Valle Trompia
- Parco Grotta Cascata Varone
- Grotte di Val de’ Varri
- Sacre Grotte Vaticane
- Ponte di Veja
- Grotta del Vento
- Le Grotte Verdi di Pradis
- Museo dell'Oro e della Bessa
- Criptoportico Romano Vicenza
- Vicus Caprarius
- Abysso Vigant
- Bergwerk Villanders
- Villa Torlonia
- Grotta Zinzulusa
Jamaica12 entries
Japan193 entries
- Abukuma-do
- Akasaki shonyudo
- Akiyoshi-do
- Akka-do
- Amano Yasugawara
- Anakami shonyudo
- Aoiwa shonyudo
- Ashio Copper Mine
- Benten Cave
- Beppu Benten Pond
- Bicchu-Kanachi ana
- Byakuren-do
- Chikura Cavern
- Christian Cave
- Daimasu shonyudo
- Daisekirinzan
- Diamond Cave
- Dorohacchō Gorge
- Enku Bora
- Enoshima Iwaya Cave
- Fucha
- Fudo-kutsu
- Fugaku Fuketsu
- Fugoppe-dokutsu
- Fuji-do
- Fukiya Copper Mine
- Fukui Cave
- Funakubo Shonyudo
- Funatsu Tainai
- Furaku Cave
- Furen shonyudo
- Futenma Cave
- Valley of Gangala
- Gankutsu Hotel
- Genzan-kutsu
- Ginryu-do
- Gokuraku-do
- Goyomatsu shonyudo
- Gujo Limestone Cave
- Gyokusen-do
- Hakuun-do
- Hanibe Caves
- Hashidate shonyudo
- Hashima Mine
- Hida dai-shonyudo
- Hiraodai Nature Observation Center
- Hito-ana
- Horayama
- Hoshino-no ana
- Ida Shaft Headframe
- Ikuno Silver Mine
- Ikura-do
- Inazumi suichu shonyudo
- Ioki Cave
- Irimizu shonyudo
- Ishigaki Do
- Iwami Ginzan
- Iwamuro Kannon
- Iwaya shōnyūdō
- Iwaya Kannon Cave
- Iwaya Kannon
- Iwayayama Cave
- Izumizaki Cave Tomb
- Izuru shonyudo
- Janeh Cave
- Jomon shonyudo
- Kagekiyo-do
- Former Japanese Navy Underground Headquarters
- Kameiwa Cave
- Kanba-no Oni-no ana
- Kanmon Kaikyo Tunnel
- Kannon Dokutsu
- Kanze Limestone Cave
- Kawachi Fuketsu
- Kigan Yusenkyo
- Kiinen Gongen
- Kin-nisshu-do
- Gold Cave Café and Bonsai Garden
- Kiyomigaoka Limestone Cave
- Kiyotsu-kyō
- Koboriya shonyudo
- Kojima Kurago
- Komakado Fuketsu
- Komori kutsu
- Manza Onsen Kumashiro Cave
- Kumaso ana
- Kumaya Cave
- Kurasawa Shonyudo
- Kurobe Gorge
- Kyusen-do
- Maki-do
- Matsuda Limestone Cave
- Matsushiro Underground Imperial Headquarters
- Mejiro-do
- Menfudo shonyudo
- Underground Kingdom Mikawa Mu Valley
- Mikurodo Cave
- Mitsugo shonyudo
- Miyama Shonyudo
- Mizonoguchi dokutsu
- Mt Omuro Lava Caves
- Mukyudou
- Muro Iwa Cave
- Nakabari Limestone Cave
- Nakatonbetsu Limestone Cave
- Nakatsu Gorge
- Nanaori shonyudo
- Nanatsugama shonyudo
- Narusawa Fuketsu
- Nippara shonyudo
- Nippon Mining Museum
- Niya-Thiya Cave
- Nobesawa Ginkodo
- Odaira shonyudo
- Ogoya Mine Museum
- Ohtake shonyudo
- Ohtaki shonyudo
- Ojika-do
- Cave Okinawa
- Okubo Mabu Mine
- Onagara shonyudo
- Onigashima Cave
- Osarizawa Mine
- Osawa Limestone Cave
- Osugidani Gorge
- Osuzawa Limestone Cave
- Otate Cave
- Oya History Museum
- Grand Central Oyster Bar
- Ōzakai Cave Dwelling Site
- Rashōmon Natural Bridges
- Reigando Cave
- Rokan-do
- Ryuga-do
- Ryugashi-do
- Ryugu Doketsu Iriguchi
- Ryugujo shonyudo
- Ryujin Limestone Cave
- Ryukeido
- Ryusen-do
- Sabichi Cave
- Sado Kinzan
- Saiko Komori-ana
- Saitobaru Burial Mounds
- Sandanbeki Dokutsu
- Saruta-do
- Satoyama Mirai Museum
- Seikoen Lava Tube
- Seiryu Cave
- Sekigahara dai-shonyudo
- Senbutsu-do
- Seppun Tunnel
- Shelter No. 20
- Shikoku Karst Natural Park
- Shimuku Gama Cave
- Shirataki shonyudo
- Shitodo
- Shizushi-do
- Shobu Cave
- Shoryu-do
- Suse Jaana Cave
- Tagawa City Coal and History Museum
- Taio Kinzan
- Taishaku Gorge
- Taisho-do
- Takachiho Gorge
- Takkoku no Iwaya Temple
- Taya Caves
- Temiya Cave
- Tera Cave
- Tohma Shonyudo
- Tohro-no iwaya
- Toi Kinzan
- Shutoken Gaikaku Hosuiro
- Tonkararin
- Toriike Pond
- Totsui shonyudo
- Uchjimagi-do
- Udo-jingū
- Ufuyaguchi Shonyudo
- Unbuki Underwater Cave Entrance
- Ushibushi dōkutsu
- Utsuno Cave
- Washizawa Fuketsu
- Yaeyama Limestone Cave
- Yajagama Cave
- Yooki Cave Ruins
- Yoshimi Hyakuana
- Yozawa shonyudo
- Yubari-si Sekitan-no-Rekisimura
- Yugen-do
- Yuki-do
- Zeniarai Benzaiten Ugafuku Shrine
Jordan5 entries
Kenya7 entries
Laos16 entries
Latvia7 entries
Lebanon17 entries
- Magharet Afqua
- Ain Wazein Cave
- Baatara Cave
- Faqra Natural Bridge
- Habis Caves
- Hamatoura Monastery
- Monastery of Our Lady of Hawqa
- Magharet Jeita
- Magharet Qadisha
- Magharet Kfar Him
- Mabaj Cave
- Mar Antonios Kozhaya
- Monastery of Mar Lishaa
- Fortress of Niha
- Our Lady Of Quannoubine Monastry
- Rouiess Cave
- Zahlan Cave
Libya1 entry
Lithuania7 entries
Luxembourg14 entries
- Caves Bernard-Massard
- Les casemates du Bock
- Amphitheater Breechkaul
- Entente Mine Cockerill
- Les Drois Glands
- Musée Eugène Pesch
- Parc Industriel et Ferroviaire du Fond-de-Gras
- Mine d'antimoine à Goesdorf
- Ardoisière Haut-Martelange
- Musée National des Mines
- Les casemates de la Pétrusse
- Grottes Schoenfels
- Caves St. Martin
- La Mine de Cuivre et le Musée Koffergrouf
Madagascar4 entries
Malaysia35 entries
- Banjaran Hotsprings Retreat
- Batu Caves
- Gua Batu Maloi
- Agop Batu Tulug
- Gua Bewah
- Gua Cerita
- Gua Charah
- Clearwater Cave
- Gua Payau
- Fairy Cave
- Gomantong Caves
- Good Luck Cave
- Gunung Senyum Caves
- Kain Hitam - The Painted Cave
- Gua Kelam
- Gua Kelam 2
- Gua Kelawar
- Lagang Cave
- Lang's Cave
- Gua Madai
- Gua Madu
- Gua Niah
- Perak Cave Temple
- Pinnacles
- Sai Baba Tambun Cave Temple
- SMART Tunnel
- Sungai Lembing
- Gua Tempurung
- Gua Terang Bulan
- Gua Terus
- T.T. No 5
- Gua Wang Burma
- Wind Cave
- Wind Cave
- Zi Xia Dong
Mali1 entry
Malta24 entries
- Binġemma
- Il-Hnejja
- Għar Calypso
- Couvre Porte
- Għar Dalam
- Hal Saflieni Hypogeum
- Għar Hasan
- Għar Id-Duhhan
- Għar il-Kbir
- il-Barri Restaurant
- Il-Maqluba
- Qaura - Inland Sea
- Għar Lapsi
- Mellieħa Cave and Spring
- Għar Ninu
- St Agatha's Catacombs
- St Paul's Catacombs
- St Paul's Grotto
- Ta’ Bistra Catacombs
- Għar tal-Iburdan
- Tal-Mintna Catacombs
- Għar Tat-Tramuntana - Għar Tat-Tramuntana
- Tieqa Zera - Azure Window
- Għar Xerri
Matrix1 entry
Mauritania1 entry
Mauritius6 entries
México99 entries
- Cueva del Abra
- Agua Azul
- Aktun Chen
- Cenote Aktun Ha
- Alux Restaurant & Lounge
- Cenote Angelita
- El Arco del Tiempo del Río La Venta
- Grutas de Atepolihui
- Cenote Azul
- Gruta de Balankanché
- Grutas de Bustamante
- Grutas de Cacahuamilpa
- Cenote Calavera
- Calcehtok Cave
- Gruta de las Canicas
- Gruta de Carlos Pacheco
- Cataviña
- Grutas de la Catedral
- Cenotillo
- Cenote Chac Mool
- Cenote Chemuyil
- Cenote Chihuo-Hol
- Cholula - Quetzalcoatl Tunnels
- Rìo Subterráneo Chontalcoatlán
- Barrancas del Cobre
- Grutas de Cocona
- Sima de las Cotorras
- Coxcatlán Cave
- Grutas de Coyame
- Cuarenta Casas
- Grutas de Cuetzalan
- Cuzamá Cenotes
- La Gruta Del Duende
- Paseo Túnel Minería Durango
- Dzibilchaltún Cenote
- Cenote Dzitnup
- Cenote Dzonbacal
- Mina de El Eden
- El Arcotete Parque Ecoturístico
- Cueva El Chorreadero
- Cenote Escondido
- Grutas de la Estrella
- Grutas de Garcia
- Cave of Padre Glandorff
- Sótano de las Golondrinas
- Gran Cenote
- Grutas los Herrara
- Hidden Worlds Cenotes
- Hierve el Agua
- Cenote Ik Kil
- Grutas de Juxtlahuaca
- Cenote Kankirixche
- Kantun Chi Caves
- Grutas Karmidas
- La Gruta
- Grutas de Lol-Tún
- Museo de La Lucha Obera
- Cueva de la Majahua
- Grutas del Mamut
- Museo de la Mineria
- Cenotes Hacienda Mucuyché
- El Nacimiento
- Cenote Naharon
- Naica Crystal Caves - Cueva de las Espadas - Cueva de los Cristales
- Nohoch Nah Chich
- Oja de Agua
- Ojo de Agua
- Cueva de la Olla
- Cueva de la Orquidea
- Grutas de Oxtotitlan
- Playa Escondida
- Cenote Ponderosa
- Mineral de Pozos
- La Gruta del Quintero
- Grutas de Rancho Nuevo
- Nacimiento Del Rio Choy
- Rio Secreto
- Cenote Sagrado
- The Caves of Saint Ignacio
- Cenote Samulá
- Cenote San Ignacio
- San Sebastián de las Grutas
- Cueva en Taninul
- Taxco Silver Mines
- Teotihuacán
- Grutas de Tolantongo
- Grutas Tzabnah
- Valenciana Mine
- Cueva de Villa Luz
- Cenote X'batun
- Xcaret
- Xel-Há
- Grutas de Xoxafi
- Xplor
- Grutas Xtacumbil-Xunan
- Cenote Yaal Utzil
- Cenote Yax Há
- Cenote Zacatón
- Cenote Zací
Middle-Earth4 entries
Moldova4 entries
Molvanîa4 entries
Montenegro7 entries
Montserrat1 entry
Morocco7 entries
Myanmar29 entries
- Bayin Nyi Cave
- Dat Taw Gyaint Waterfall
- Dat Taw Taung Cave
- Deedote Blue Lagoon
- Eaik Sa Ta Ya Cave
- Gems Museum
- Htan San Cave
- Kaw Gon Cave
- Kaw Ka Thaung Cave
- Khayon Cave
- Kyat Khayon Cave Monastery
- Linno Gu
- Mogok Gem Mines
- Moun Ta Wa Cave
- Nammongyi Blue Lagoon
- Naung Mya Hlwe Cave
- Naypyitaw Gem Museum
- Padah-Lin Caves
- Padamyar Cave
- Peik Chin Myaung Cave
- Phakant Jade Mine
- Pindaya Cave
- Powintaung Cave Pagodas
- Saddan Cave
- Shwe Kyar Pwint Cave
- Shwe Oo Min Cave
- Ti Law Ka Guru Cave
- Well Byan Cave
- Yathae Pyan Cave
Namibia6 entries
Nepal7 entries
Netherlands29 entries
- A GoGo Valkenburg
- Historische Kelders Arnhem
- Derlon Hotel Museum Cellar
- Dino's Monstergrot
- DOMunder
- Duivelsgrot
- Fluweelengrot
- Forteiland
- Gemeentegrot
- Geulhemmergroeve
- Grottenaquarium
- Atlantikwall-Museum Hoek van Holland
- Jezuïetenberg
- Widerstandsnest 67 HL
- La Caverne
- Maastricht Kazematten
- Maastunnel
- Atlantikwall Museum Noordwijk
- De prehistorische vuursteenmijnen van Rijckholt - St. Geertruid
- Romeinse Katacomben
- Atlantikwall Museum Scheveningen
- Schuilen in Maastricht
- Sibbergroeve
- Steenkolenmijn Valkenburg
- Grotten St. Pietersberg
- Prehistorische Vuursteenmijnen te Valkenburg aan de Geul
- The Vault
- Nederlands Wijnmuseum Arnhem
- Bunkermuseum Zoutelande
New Caledonia2 entries
New Zealand54 entries
- Ananui Cave
- Aranui Cave
- The Ballroom
- Banbury Tourist Mine
- The Legendary Black Water Rafting
- Box Canyon Cave
- Brunner Mine
- Bullock Creek Sinks
- Cathedral Caves
- Cave Creek
- Cave Stream
- The Chasm
- Coaltown Museum
- Footwhistle Glowworm Cave
- Fox River Caves
- Waitomo Glowworm Grotto
- Harwood's Hole
- Hobbiton
- Hole in the Rock
- Honeycomb Cave
- Jacks Blowhole
- Kawiti Glowworm Caves
- The Lost World
- Macraes Mine
- Maori Leap Cave
- Martha Mine
- Mitchells Gully Gold Mine
- Waitomo Caves Discovery Centre
- Ngarua Caves
- Nikau Cave
- North Head Tunnels
- Oparara Arch
- Orakei Korako
- Pohara Natural Bridge
- Punakaiki Cavern
- Pupu Springs
- Rawhiti Cave
- Reefton Gold Mine Tours
- Rikoriko Cave
- Ruakuri Cave
- Spellbound Glowworm Cave
- Taniwha Cave
- Taniwha Cave
- Tarawera Falls
- Te Anaroa Cave
- Te Anau Glowworm Caves
- Teorumata Cave
- Thames Gold Field
- Troll Cave
- Underworld Adventures
- Waihi Gold Mining Museum and Art Gallery
- Waipu Caves
- Weta Cave
- Xanadu Cave
Nicaragua2 entries
Nigeria6 entries
Niue8 entries
North Korea2 entries
North Macedonia9 entries
Northern Mariana Islands2 entries
Norway43 entries
- Sinkgruvene i Allmannajuvet
- Åmdals Verk Gruver
- Andersgrotta
- Baggehola
- Grottene i Beiarn
- Blaafarveværket
- Dalen-Kjørholt Gruve
- Evakueringshulen
- Flaat Nikkelgruve
- Folldal Gamle Gruver
- Store Gaulstadgrotta
- Gronligrotta
- Gruve 3
- Gruve 7
- Magic White Caves of Gudvangen
- Hadeland Bergverksmuseum
- Kåfjord Kopperverk
- Knaben Gruvemuseum
- Norsk Bergverksmuseum Kongsberg
- Konnerud Gruver
- Lærdalstunnelen
- NOAH Langøya
- Gruvemuseet på Litlabø
- Gammelgruva Løkken
- Longyearbreen Grotte
- Mikaelshulen
- Smaragdgruvene Byrud Gård
- Nigardsbreen Ice Cave
- Norsk Oljemuseum
- Pæska Skiferbrudd
- Refsvikhula
- Olavsgruva
- Setergrotta
- Setesdal Mineral Park
- Skaren-Monsen caves
- Storwartz
- Sulitjelma Besøksgruver
- Svarthamarhola
- Sydvaranger Mine
- Torghatten
- Trollholene
- Trollkyrkja
- Visnes Gruvemuseum
Oman8 entries
Pakistan3 entries
Panama7 entries
Papua New Guinea8 entries
Perú13 entries
Poland60 entries
- Anlage Mitte
- Projekt Arado
- Pola Bełchatów
- Błędne Skały
- Muzeum Przemysłu Naftowego i Gazowniczego im. Ignacego Łukasiewicza
- Kopalnia Soli w Bochni
- Pętla Boryszyńska
- Chelmskie Podziemia Kredowe
- Jaskinia Ciemna
- Sztolnia "Czarny Potok" w Tarnowskich Gorach
- Jaskinia Ku Dziurze
- Jaskinia Głęboka
- Tajemnicze Podziemne Miasto Gluszyca
- Skansen Przemysłu Naftowego „Magdalena” w Gorlicach
- Muzeum Górnictwa Węglowego
- Zwiedzanie Kopalni Guido
- Podziemna Trasa w Jarosławiu
- Jaskinia Jasna koło Smolenia
- Kamieńczyk Gorge
- Kopalnia Uranu Kletno
- Klodawa Salt Mine
- Podziemna Trasa Turystyczna 1000-Lecia Panstwa Polskiego w Klodzku
- Twierdza Klodzka
- Podziemne Muzeum "Kopalnia Zlota" w Zlotym Stoku
- Skansen Górnictwa Kowarskiego
- Sztolnie Kowary
- Prahistoryczne Kopalnie Krzemienia w Krzemionkach
- Jaskinia Łokietka
- Sztolni Królowa Luiza
- Mauerwald
- Jaskinia w Mechowie
- Miedzyrzecki Rejon Umocniony
- Jaskinia Mroźna
- Jaskinia Mylna
- Jaskinia Niedźwiedzia
- Jaskinia Nietoperzowa
- Muzeum Gornictwa Podziemnego w Nowej Rudzie
- Jaskinia Obłazkowa
- Ekspozycja Przyrodnicza Ojców
- Podziemia Opatowskie w Opatowie
- Osowka Complex
- Jaskinia Piekło
- Muzeum Zimnej Wojny Podborsko 3001
- Kopalnia Podgórze
- Jaskinia Radochowska
- Jaskinia Raj
- Jaskinia Raptawicka
- Podziemna Trasa Turystyczna w Sandomierzu
- Smocza Jama
- Jaskinia Smocza Jama w Wąwozie Kraków
- Kopalnia Szklary Huta
- Muzeum Przemyslu i Techni w Walbrzychu
- Podziemne Fabryki Walimia
- Wieliczka Salt Mine
- Wielka Sniezna
- Jaskinia Wierzchowska Górna
- Włodarz Complex
- Wolfsschanze
- Zabytkowa Kopalnia
- Muzeum Żup Krakowskich Wieliczka
Portugal42 entries
- Furna do Abel
- Gruta das Agulhas
- Gruta das Alcobertas
- Aliança Underground Museum
- Parque Mineiro De Aljustrel
- Grutas de Alvados
- Nascentes do Alviela
- Parque Natural da Arrábida
- Algar de Benagil
- Algar do Carvão
- Gruta do Carvão
- Furnas do Cavalum
- Furna do Enxofre
- Gruta do Escoural
- José Maria da Fonseca Wine Cellars
- Furna de Frei Matias
- Gruta da Furninha
- Boca do Inferno
- Lisboa Roman Galleries
- Mina subterrânea de Sal-Gema de Loulé
- Museu Mineiro do Lousal
- Museu Vulcanoespeleológico "Machado Fagundes"
- Gruta da Maria Encantada
- Santuário da Penha
- Grutas de Mira de Aire
- Polje de Mira-Minde
- Grutas da Moeda
- Monsanto
- Cova dos Mouros
- Gruta do Natal
- Reservatório da Patriarcal
- Algar do Pena
- Quinta da Regaleira
- Quinta das Minas da Recheira
- Rocha de Pena
- Grutas do Rossio
- Grutas de Santo-Adriao
- Grutas de Santo-António
- Mina de São Domingos
- Grutas de São Vicente
- Gruta das Torres
- Gruta do Zambujal
Puerto Rico9 entries
Romania55 entries
- Pestera Albastra
- Piatra Altarului
- Muzeul Aurului din Brad
- Bănița Gorge
- Peștera Bolii
- Salina Cacica
- Pestera Cetatile Ponorului
- Peștera Coiba Mare
- Peștera Coiba Mică
- Peştera Comarnic
- Crystal Cave of Farcu Mine
- Peştera Dambovicioara
- Muzeul de Speologie "Emil Racoviţă"
- Peştera Ghetarul Focul Viu
- Peștera Hoților
- Peştera Huda lui Papară
- Peştera Ialomita
- Institutul de Speologie "Emil Racoviţă"
- Poarta Lui Johele
- Peştera Isverna
- La Zaplaz
- Peştera Liliecilor
- Peştera Meziad
- Peștera Moanei
- Peştera Movile
- Peştera Muierilor
- Salina Ocnele Mari
- Cheile Oltețului
- Muzeul Petrolului
- Peştera Polovragi
- Pestera Ponicova
- Podul Natural de la Ponoarele
- Peștera Porțile Bihorului
- Salina Praid
- Praid
- Cetățile Rădesei
- Pestera Romanesti
- Peştera Scarisoara
- Peştera mănăstire de la Sinca Veche
- Slănic Mine
- Peștera Sfântului Antonie de la Iezer
- Peștera Sfântului Grigorie Decapolitul
- Peştera Şugău
- Salina Târgu Ocna
- Peştera de la Tismana
- Pesterii Topolnita
- Salina Turda
- Pestera Ungurului
- Peştera Urşilor
- Peştera de la Vadu-Crisului
- Pestera Valea Cetatii
- Peștera Ghețarul de la Vârtop
- Peştera Veterani
- Pestera Vintului
- Lacu Záton
Russia61 entries
- Adjimushkay Quarries
- Akhshtyrskaya Cave
- Askyn Ice Cave
- Naval Museum Complex Balaklava
- Bol'shaya Azishskaya Cave
- Chersonesos Cave Chruch
- ChufutKale
- Dakhovskaya Cave
- Dekor 1 Gypsum Mine
- Demeter's Crypt
- Denisova
- Muzey Drevnego Cheloveka
- Emine Bair Khasar Cave
- Eski-Kermen
- Geophysical Cave
- Golubinsky Proval
- Blue Lake
- Goluboye Ozero
- Goluboye Ozero Kabardino
- Goluboye Ozero Samara
- Holkovsky Monastery
- Ignateva Pestera
- Inkerman Cave Monastery
- Karaulnaya Cave
- Karlamanska Cave
- Khadzhokhskaya tesnina
- Korkinsk Coal Mine
- Krasnaja pestera
- Krasny Klutch Spring
- Kungur ledenica pestera
- Kyzyl-Yar Cave
- MangupKale
- Melek-Chesmensky Kurgan
- Mezmaiskaya Cave
- Mir Diamond Mine
- Moscow Metro
- Mramornaja
- Musejnaja
- Nezhnaya Cave
- Novomuradymovskaya Peshchera
- Ordinskaya Peschtera
- Peshchery Past' Drakona
- Rasboinichja
- Vodopady Rufabgo
- Sarva Spring Lake
- Shulgan-Tash (Kapova) Cave
- Sibaysky Open Pit
- Skelsky Pestera
- Stalin's Bunker
- Sugomak Pestera
- Syanovskie Quarry
- Bunker GO-42
- Taldinskij
- Tepe-Kermen
- Three Eyed Cave
- Tsar's Mound
- Uspensky Cave Monastery
- Ust-Kansky
- Vorontsovskaya Cave
- Yalta Cave
- Yur'yevskaya Peshchera
Rwanda1 entry
Saint Vincent and the Grenadin1 entry
Samoa7 entries
Saudi Arabia2 entries
Serbia21 entries
- Muzej Rudarstva i Metalurgije Bor
- Ceremosnja Pecina
- Dubocka Pecina
- Grza
- Hadži-Prodanova Pecina
- Cave Church Kadjenica
- Mermerna Pecina
- Petnicka Pecina
- Pecina kod Petrusa
- Potpecka Pecina
- Prekonoška Pećina
- Shpella e Radacit
- Rajkova Pecina
- Ravanicka Pecina
- Pecina Ravnistarka
- Resavska Pecina
- Risovaca Pecina
- Stopića Pećina
- Isposnica Svetog Save
- Taor Spring
- Zlotske Pećine
Slovakia62 entries
- Banské múzeum štôlňa Andrej
- Baňa Cígeľ
- Banská Štiavnica
- Belianska Jaskyna
- Bešeňovské travertíny
- Mineralogické a Banícke Múzeum Bojnice
- Bojnická Jeskyne
- Brestovská jasky?a
- Bunker B-S 8 Hřbitov
- Bystrianska Jaskyna
- Cierny Vyvieracka
- Demanovska L'adova Jaskyna
- Demanovska Jaskyna Slobody
- Dobsinska Ladova Jaskyna
- Jaskyna Domica
- Jaskyna Driny
- Mestská a naftárska expozícia Gbely
- Banícke Múzeum Gelnica
- Gombasecka Jaskyna
- Expozícia uhoľného baníctva na Slovenku
- Harmanecká Jaskyna
- Vyvieračka Hlbokô
- Banský Skanzen v Hnilčíku
- Hodruša Hámre
- Jánošíkove diery
- Jasovska Jaskyna
- Termálny Prameň Kaďa
- Kláštorská Roklina
- Slovenské Technické Múzeum
- Krasnohorska Jaskyna
- Podzemie pod vežami
- Lúčansky Vodopád
- Rokle Malý Kyseľ
- Miniexpozíca Ťažby a Spracovania Bridlice v Marianke
- Múzeum baníctva a hutníctva Maša
- Jaskyňa mŕtvych netopierov
- Medvedia štôlňa
- Slovenské múzeum ochrany prírody a jaskyniarstva
- Banícka a geologická expozícia v Nižnej Slanej
- Pohronské múzeum Nová Baňa
- Ochtinska Aragonitova Jaskyna
- Slovenské Opálové Bane
- Banícka Expozícia Pezinok
- Rokle Piecky
- Banícke múzeum Rožňava
- Šarišská galéria Prešov
- Šarkania diera
- Silicka Ladnica Jaskyna
- Solivar v Prešove
- Múzeum medi v Španej Doline
- Expozícia História Baníctva na Spiši
- Stanišovská jaskyňa
- Rokle Suchá Belá
- Súľovské Skaly
- Historická Pivnica Tokaj & Co S.R.O.
- Vazecka Jaskyna
- Rokle Veľký Kyseľ
- Veľký Sokol
- Múzeum Vín Prešov
- Múzeum Zemplínske Hámre
- Jaskyňa Zlá Diera
- Historická Pivnica Zlatý Strapec
Slovenia54 entries
- Ajdovska Jama
- Antonijev Rov
- Jama pod Babjim zobom
- Izviri v Bistri
- Boka
- Cerknisko Jezero
- Dimnice Jama
- Divaška Jama
- Divje Jezero
- Francetova Jama
- Grofova Jama
- Huda Luknja
- Klobasja Jama
- Kostanjevica Jama
- Slap Kozjak
- Rovi pod starim Kranjem
- Krizna Jama
- Krompirjeva Jama
- Krška jama - izvir Krke
- Lintvern
- Lojzova Jama
- Domačija Marof
- Rudnik svinca in cinka Mežica
- Izviri v Močilnik
- Izvir Nadiže
- Notranjski muzej Postojna
- Otliško Okno
- Otoska Jama
- Paradana Ledenika Jama
- Jama Pečinka
- Jama Pekel
- Pivka Jama and Crna Jama
- Planinska Jama
- Planina Karst Polje and Seasonal Lake
- Postojnska Jama
- Predjamska Jama
- Radgonske Gorice
- Rakov Skocjan Nature Reserve
- Ravenska Jama
- Izviri v Retovje
- Slap Savice
- Skocjanske Jame
- Smrekova Draga
- Snezna Jama
- Speleobiološka Postaja
- Štefanova Vinska Klet
- Sveta Jama
- Županova Jama - Taborska Jama
- Muzej Premogovništva Slovenije
- Jama Vilenica
- Blejski vintgar
- Zelenci
- Železna jama
- Zelške jame
Somalia1 entry
South Africa33 entries
- Blaauwbank Historic Gold Mine
- Blyde River Canyon
- Border Cave
- Bultfontein Mine
- Burke's Luck Potholes
- Bushmans Kloof
- Cango Caves
- Cullinan Mine
- Echo Caves
- Ferreira's Mine
- Gold Reef City
- Hole-in-the-Wall
- Holkrans at Golden Gate
- Holkrans at Meiringskloof
- Jagersfontein Mine
- Kaaiman's Grotto
- Kimberley Mine - Big Hole
- De Beers Open Mine
- Komati Gorge
- Kromdraai Gold Mine
- Lanner Gorge
- Maropeng
- Montagu Guano Cave
- Motouleng Caves
- Oribi Gorge
- Palabora Copper Mine
- St Blaize Cave
- Sterkfontein Caves
- St. Helena Gold Mine
- Sudwala Caves
- Swartkrans Cave
- Wondercave
- Wonderwerk Cave
South Korea35 entries
- Baekryong Donggul
- Boryeong Coal Museum
- Cheondong Cave
- Cheongok Golden Bat Cave
- Cheoram Coal Mine History Village
- Daegeumgul
- Farm8
- Gamaoreum Japanese Cavern Site
- Gimhae Wine Cave
- Gossi Cave
- Gosu Cave
- Gwangmyeongdonggul
- Haan Gul
- Hwaam Gul
- Hwalok Cave
- Hwanseon Gul
- Hyeopjae Gul - Ssangyong Gul
- 3rd Infiltration Tunnel
- Jasujeong
- Jeongbang Waterfall
- Kimnyongsa Gul
- Kumganggul
- Manjang Gul
- Micheongul
- Mulgol Cave
- Mungyeong Coal Museum
- Nodong Cave
- Ondaldong Gul
- Sanbang Gul
- Seokguram Grotto
- Seongnyu Gul
- Sipja Donggul
- Song Unsa Temple
- Taebaek Coal Museum
- Yongyeon Cave