Hidden beneath the unassuming landscape of eastern Pennsylvania lies a subterranean marvel that seems plucked from a fantasy ...

That’s exactly what happens at Indian Echo Caverns in Hummelstown. Forget scrolling through filtered Instagram photos of far-off destinations – one of nature’s most spectacular showcases is hiding ...

Traveling around Eagle County, it is easy to wonder about the interesting geological features that dot the landscape. While ...

The plentiful, dramatic formations at Apostle Islands National Lakeshore that lured 138,000 ice cave trekkers to northern Wisconsin in 2014 haven't been accessible in recent years because of ...

National park caves all over the nation are a great way to explore cool things underground.

On the northern edge of the Ozark Mountains, Onondaga Cave is one of two known caves that encompass part of a Missouri state park that shares the same name.

Beneath the United States lies a surprising network of caves shaped over millions of years. Some feel almost otherworldly, with strange rock formations and the occasional glow from naturally ...

From the Decorah Ice Cave to Maquoketa Caves State Park there are more than 1,000 caves in Iowa. Here's a guide to seven of the most popular, all in one area of the state.

Explore the stunning underground world of Anderson Spring Cave in this adventure-packed video. Featuring incredible natural formations, tight passages, and breathtaking chambers, this cave is a ...

If you’ve ever been on a cave tour where the guide shines a black light, you’ve seen the walls and formations glow. The stunning fluorescence is often the result of impurities trapped in ...

The entrance to the cave looks sterilized — a stainless steel door that wouldn’t seem out of place in a hospital looks wholly foreign out here in Mammoth Cave National Park. Yet our cave guide ...