Belgium 's hidden gems aren't just found above ground. The country is home to some of the most amazing cave systems that ...

Deep beneath the hills of eastern Spain, scientists stepping into a lightless cavern have stumbled on a world that feels ...

Step into an Arkansas cave where glowing formations, cool air, and echoing chambers make it feel like you’ve entered another ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — Southern California is home to ...

Dawn Ryan (front), cave manager at Forestville/Mystery Cave State Park in southeast Minnesota's Fillmore County, and Krista McDermid from Zara Environmental during recent research to inventory animal ...

Missouri has a whole other world under the surface of the Earth. Far below the surface of Missouri, a state that is perhaps best known for Kansas City-style barbeque, Anheuser-Busch, and an odd ...

Step off the desert trail and into Arizona’s longest cave, where crystal formations and subterranean wonders await.

Just three years ago, a group of Idaho men traveled to an unnamed Western state and in an unnamed range of rugged mountains, hiked up a steep trail. At the top, they unraveled climbing ropes, stepped ...

An underground chamber found in Jubilee cave is the largest known in Israel, rising over 10 stories tall beneath Ofra.

Cave explorers have traversed what’s now the deepest known cave in Australia. On Saturday a group of explorers discovered a 401-metre-deep cave, which they named Delta Variant, in Tasmania’s ...

The world’s oldest known cave art shows how early humans crossed oceans, offering rare insight into ancient migration routes.

Missouri has a whole other world under the surface of the Earth. Far below the surface of Missouri, a state that is perhaps best known for Kansas City-style barbeque, Anheuser-Busch, and an odd ...