Travel expert Rick Steves loves this hidden gem cave system in Slovenia full of fascinating formations. Here's what to expect if you book a trip there.

Looking for blind cavefish in San Luis Potosí, biologist Luis Espinasa and his team accidentally found the remains of giant ...

The 16 newly designated geoparks are located in China, Democratic People's Republic of Korea –marking its first geopark and ...

NASA has revealed a 328-foot-wide hole on Mars, potentially a gateway to subterranean caves that could harbor alien life.