Kartchner Caverns – Arizona, USA
Cango Caves – Western Cape, South Africa
Harrison’s Cave – Allen View, Barbados
Carlsbad Caverns – New Mexico, USA
Mammoth Cave – Kentucky, USA
Dongzhong Cave – Guizhou, China
Fantasy Cave – Dannervirke, New Zealand
Phong Nha Cave – Minh Hoa, Vietnam
Barton Creek Cave – Cayo, Belize
Škocjan Caves – Trieste, Slovenia
Deer Cave – Borneo, Malaysia
Onondaga Cave – Missouri, USA
Puerto Princesa Underground River – Palawan, Philippines
Majlis al Jinn Cave – Muscat, Oman
Eisriesenwelt Ice Caves – Werfern, Austria
Fantastic Cave Pit – Georgia, USA
The Reed Flute Cave – Guangxi, China
Blue Grotto – Capri, Italy
Ice Cavern – Skattafel, Iceland
Lascaux Caves – Motignac, France
Cave of Crystals – Chihuahua, Mexico
Glowworm Cave – Waitomo, New Zealand
Fingal Cave – Staffa, Scotland
Cave of the Swallows – Aquismon, Mexico
Cave of the Ghost – Cainama National Park, Venezuela