The Salt Cathedral of Zipaquirá (Spanish: Catedral de Sal de Zipaquirá) is an underground Roman Catholic church built within the tunnels of a salt mine 200 meters underground in a Halite mountain near the town of Zipaquirá, in Cundinamarca, Colombia. It is a very popular tourist destination and pl
Matka (Macedonian: Матка, meaning 'womb') is a canyon located west of central Skopje, Macedonia. Covering roughly 5,000 hectares, Matka is one of the most popular outdoor destinations in Macedonia and is home to several medieval monasteries. The Matka Lake within the Matka Canyon is the oldest arti
La montaña de sal de Cardona es un diapiro que crece cada año, ocupando una depresión del terreno con forma de elipse alargada con una extensión de terreno de 1.800 m de longitud por 600 de ancho y una superficie de 100 ha, con unas características naturales que la han hecho merecedora de ser incl
Mammoth Cave National Park is a U.S. National Park in central Kentucky, encompassing portions of Mammoth Cave, the longest cave system known in the world. The official name of the system is the Mammoth-Flint Ridge Cave System for the ridge under which the cave has formed. The park was established as
Batu Caves is a limestone hill, which has a series of caves and cave temples, located in Gombak district, 13 kilometres (8.1 mi) north of Kuala Lumpur, Malaysia. It takes its name from the Sungai Batu or Batu River, which flows past the hill. Batu Caves is also the name of the nearby village.
The Wieliczka Salt Mine, located in the town of Wieliczka in southern Poland, lies within the Kraków metropolitan area. The mine continuously produced table salt from the 13th century until 2007 as one of the world's oldest operating salt mines (the oldest being the Bochnia Salt Mine).
The Grutas de Cacahuamilpa National Park in Guerrero, Mexico, is best known for the Grutas de Cacahuamilpa Caverns, which are one of the largest cave systems in the world. It is also home to the Grutas of Carlos Pacheco, a smaller system, as well as two subterranean rivers which have carved out
Saeva dupka (Bulgarian: Съева дупка) is a cave in Northern Bulgaria near the village of Brestnitsa, Lovech Province (). Its five halls and 400 metres of corridors offer some of the most beautiful cave formations in the country. Besides that the cave has hosted many Choral music performan
The Bochnia Salt Mine (Polish: kopalnia soli w Bochni) in Bochnia, Poland is one of the oldest salt mines in the world and the oldest one in Poland. The mine was established between the 12th and 13th centuries after salt was first discovered in Bochnia, and became part of the Royal mining company
Grotta Gigante ('Giant Cave', Slovene: Briščkova jama), also known as Riesengrotte or as Grotta di Brisciachi, is a giant cave on the Italian side of the Trieste Carso, in the municipality of Sgonico. Its central cavern is 107 metres (351 ft) high, 65 metres (213 ft) wide and 130 metres (430 ft) l
Luray Caverns, originally called Luray Cave, is a large, celebrated commercial cave just west of Luray, Virginia, USA, which has drawn many visitors since its discovery in 1878. The underground cavern system is generously adorned with speleothems (columns, mud flows, stalactites, stalagmites,
Cheddar Gorge is a limestone gorge in the Mendip Hills, near the village of Cheddar, Somerset, England. The gorge is the site of the Cheddar show caves, where Britain's oldest complete human skeleton, Cheddar Man, estimated to be over 9,000 years old, was found in 1903. Older remains from the Upper