Buenos Aires

Buenos Aires is an Autonomous City and is the capital and largest city of Argentina. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the country and South America. The name is Spanish and means fair winds, given to the place by the founders in the 16th century. There are no mines or caves, but numerous subterranea. The city has a subway, the Buenos Aires Underground with 100 stations, and 58.8 km of tracks, which is definitely worth a visit but not exceptional enough to be listed. But we actually listed only the enigmatic túnels, which are of unknown origin and unknown use. They are sometimes called Jesuit tunnel because the jesuites were the only one who had the knowledge to built them. There is also a cistern museum.

Another site which is not listed is the bookstore named El Túnel, because it's not underground, despite the name. It was named after the book El Túnel, a dark, psychological novel written by Argentine writer Ernesto Sabato about a deranged porteño painter. As far as we know it sells only Spanish books, so its well worth a visit if you speak the language.

Buenos Aires Province is the largest and most populous Argentine province covering the plains south of the capital city. Those plains are called the Pampas, and are mostly below 200 m asl. Despite its enormous size the province has almost no underground sites, neither caves nor mines or other artificial underground structures. The high groundwater makes both karstification and the construction of subterranea very difficult. The only cave we listed is a tufa cave, and there are some small sea caves.