Some of the coolest spots you’ve never heard of may lie right beneath your feet. From one-of-a-kind caves to commuter walkways to “underground cities” from the early 1900s, there are many places to ...

New fossil discoveries are forcing scientists to redraw the boundaries of ancient oceans, suggesting that some of the most ...

Looking for an adventure that’s cool (literally) and completely out of the ordinary? The United States is home to some of the world’s most fascinating cave systems, each with its own story carved by ...

Scientists from Northwestern University in the U.S. led a series of underwater expeditions collecting water samples from the deep web of caves and sinkholes in the Yucatán Peninsula. The southeastern ...

When the summer sun is blazing, there’s no better way to cool off than by heading underground. Caves offer a naturally air-conditioned escape, along with a chance to explore some of the Earth’s most ...

People might not believe it if they haven't been to Missouri, but the state, which is also known as the Cave State, is home to over 7,000 caves offering a plethora of breathtaking subterranean ...

You don’t really spot the secret staircase down to the sea at first. After all, it’s tucked neatly in between the bumper stickers and seashell magnets of a clapboard trinket shop, and the views out ...