Looking for an adventure that’s cool (literally) and completely out of the ordinary? The United States is home to some of the ...

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 ...

The story of the Bell Witch dates back to the early 1800s, but still draws visitors from all over the world to the tiny city ...

Are you looking for the best underground attractions in Iowa? This Iowa state park is the first place you should go.

Beneath the Valley: the story of the famous caves of the Virginias -- The toughest cave: the story of Schoolhouse Cave -- The eternal standard: the story of Mammoth Cave -- In a lonely sandstone cave: ...

While precious summer hours are slowly ticking away, fall-like weather may be nice enough to get outside on the weekends for weeks yet. In case you weren't paying attention, fall returns on Sept. 22.

Carlsbad Caverns, one of the most impressive underground complexes on the planet and a UNESCO World Heritage Site, has been threatened not by an earthquake or natural erosion, but by something as ...