Vietnam's Son Doong, the world's largest cave passage, started its life millions of years ago as a crack the width of a piece ...

Son Doong, the world's largest cave passage — big enough to fit a skyscraper — is deep inside a Vietnamese jungle. Exploring ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

The discovery of more than 100 prehistoric structures in the Cova Dones cave in Spain makes it one of the most significant prehistoric underground sites in the world. Archaeologists found stalagmites ...

A new study has demonstrated that we now have the tools to study the incredibly complex ecosystems of caves in near real-time ...

Arkansas is full of underground wonders. Discover these cave spots with dramatic formations, hidden history, and some of the most unusual scenery in the Ozarks.

There’s something about cave exploring that intimidates me. Perhaps it’s venturing below ground or the feeling of being enclosed, but the whole experience strikes me as a bit off-putting. That being ...

Cave City, the home to Mammoth Cave National Park, is giving visitors reason to stop and explore. Cave City in Barren County is home to Mammoth Cave National Park. Over the years, the city has gone ...

An underground stream winds through a vast Illinois cave few people know about. Wade through cool water and explore one of ...