Bulgaria by Region

• Burgas Province
• Thrakian Tomb "Hollow Mound" Pomorie

• Gabrovo Province
• Bacho kiro

• Haskovo Province
• Aleksandrovo Thracian Tomb

• Kardzhali Province
• Triple Womb Cave
• Utrobata

• Kyustendil Province
• Cave of St. Ivan Rilski near Rila
• Cave of St. Ivan Rilski near Skrino

• Lovech Province
• Boninska Peshtera
• Devetashka peshtera
• Garvanitsa
• Krushuna
• Liar’s Cave
• Maarata Cave
• Prohodna Cave
• Stalbitsata Cave
• Sueva dupka
• Tabashka Cave
• Water Holes Cave

• Pazardzhik Province
• Lepenitza Cave
• Snežanka

• Pernik
• Erma Gorge
• Underground Mining Museum Pernik

• Pleven Province
• Pleven Wine Museum

• Plovdiv Province
• Dobrostan Pearl Cave
• Regional Natural History Museum

• Razgrad Province
• Demir Baba
• Thracian Tomb of Sveshtari

• Rousse Province
• Basarbovo Cave Monastery
• Ivanovo Rock Churches
• Orlova Čuka

• Shumen Province
• Peštera "Biserna" - Pearl Cave

• Smolyan Province
• Buynovsko Zhdrelo
• Museum of Speleology and Bulgarian Karst
• Chudnite Mostove
• Dyavolski Most
• Djavolskoto Garlo Cave
• Golubovitsa Cave
• Haramiiska Dupka
• Iagodinska Peštera
• Madan Museum of Ore Mining and Mining Industry
• Sharenka Cave
• Trigrad Gorge
• Uhlovitsa

• Sofia Province
• Temnata dupka

• Sofia City Province
• Alexander Nevsky Cathedral Underground Crypt
• Museum of Mineralogy, Petrology and Mineral Resources
• Serdika Metro Station
• Archaeological Level of St. Sophia Basilica

• Stara Sagora Province
• Kazanluk Tomb
• Temple in the Tomb of Ostrusha
• Tomb of Seuthes III

• Varna Province
• Aladzha Monastery
• Skalen Manastir Shashkanite

• Vidin Province
• Belogradchik Rocks
• Peshtera Kozarnika
• Magura
• Venetsa Cave

• Vratsa Province
• Ledenika
• Bridge of God