There’s a cave in Illinois that watches the Ohio River go by. It’s big, strange, and way more memorable than expected.

The Lava River Cave exhaled chilled air. I put on my sweatshirt, despite the hot July day. Though I'd been warned about the sudden drop in temperature to a crisp 42 degrees, it was hard to believe I'd ...

Cave exploration has fascinated Dave Foster almost his entire life. As a Virginia youth, he would find himself engrossed in exploration stories like the sci-fi expedition classic “Journey to the ...

Hidden River Cave was once filled with heavy metals and sewage that made the surrounding town smell awful. After a cleanup, it became a tourist draw. The entrance to Hidden River Cave lies just off ...