If you're into exploring prehistoric and Ancient Americas cliff dwellings and art, head north to Billings to check out this ...

Alabaster Caverns State Park near Freedom, Oklahoma offers a subterranean adventure that transforms ordinary Tuesday afternoons into extraordinary explorations of geological marvels.

Lake Shasta Caverns in Redding, California, is exactly that kind of place—a hidden underground wonderland that makes you ...

The stream leading to Krem Mawjymbuin in Meghalaya, India. Photo shared by Dandadhar Sarma Once at the cave entrance, researchers followed a stream for roughly 260 feet. Along the way, they found ...

She stops to observe Megan Hormell, a graduate student at Des Moines University and one of several volunteers who have rappelled into the cave on a nylon line dangling from the entrance 80 feet ...

It's a win-win, and it's why everything on iStock is only available royalty-free — including all Building Entrance images and footage. What kinds of royalty-free files are available on iStock? How can ...

Before it was a hub of nature, research and education, the Lost River Cave entrance was home to the Cavern Nite Club, an innovative concept in the 1930s through the early 1960s that hosted famous ...

The public is asked to leave the cave untouched. The only this that tour guides take out are the people they bring in.