The Salt Cathedral of Zipaquirá (Spanish: Catedral de Sal de
Matka (Macedonian: Матка, meaning 'womb') is a canyon located west
Mammoth Cave National Park is a U.S. National Park in central
Batu Caves is a limestone hill, which has a series of caves and cave
The Caves of Han-sur-Lesse (in French: Grottes de Han-sur-Lesse or
The Grutas de Cacahuamilpa National Park in Guerrero, Mexico, is best
Saeva dupka (Bulgarian: Съева дупка) is a cave in Northern Bulgaria
Howe Caverns is a cave in Howes Cave, Schoharie County, New York.
La montaña de sal de Cardona es un diapiro que crece cada año, o
Phong Nha - Ke Bang (Vietnamese: Vườn quốc gia Phong Nha-Kẻ Bàng)
The Barabar Caves are the oldest surviving rock-cut caves in India ,
The Wieliczka Salt Mine, located in the town of Wieliczka in southern
The Bochnia Salt Mine (Polish: kopalnia soli w Bochni) in Bochnia,
The Frasassi Caves (Italian: Grotte di Frasassi) are a remarkable
Luray Caverns, originally called Luray Cave, is a large, celebrated
Chislehurst Caves are a 22 miles (35 km) long series of tunnels in C
The Blue Grotto (Grotta Azzurra) is a noted sea cave on the coast of
Cheddar Gorge is a limestone gorge in the Mendip Hills, near the
Meramec Caverns is an 4.6-mile (7.4 km) cavern system in the
Cueva de los Verdes (Spanish for 'Greens' cave', because in the past
