Volunteers dig tonnes of rock and mud from a new cave network in North Yorkshire.

The coastal plain of the Kamb Ice Stream, a West Antarctic glacier, hardly seems like a coast at all. Stand in this place, 800 kilometers from the South Pole, and you see nothing but flat ice ...

Deep under New Mexico is one of the most stunning and beautiful national parks. Carlsbad Caverns, under the Guadalupe Mountains near the border of Texas, is an otherworldly complex of caves and ...

The deepest cave in Missouri, which sprawls over 500 feet below the surface of the Earth, was first discovered by the Osage Nation in the 1500s. Not long after, Spanish explorers in search of riches ...

Dinosaurs are set to take over Louisville's Mega Cavern through the end of April with an event that will transports visitors "back in time to when dinosaurs roamed the Earth," according to a release.