Maryland's only show cave might not be the largest, but it’s packed with stunning formations at every turn. Crystal Grottoes Caverns is a hidden gem that delivers a surprising underground experience ...

Floyd Collins got trapped in a Kentucky cave 100 years ago this week, an incident that led to the creation of Mammoth Cave National Park.

When Floyd Collins ventured into Sand Cave in Kentucky on Jan. 30, 1925, he was searching for the next big attraction. But he ...

Discovered in 1999 inside an abandoned mine in Southern Spain, Pulpí Geode is the largest crystal 'cave' of its kind in the world. But what exactly is a geode and how do crystals form inside them?

The Hill County gem, Cave Without a Name, has had its space used for concerts, weddings and other events since 1939. Visitors' next chance to catch a show in the cavern designated as a Natural ...

More recently, Cave of the Winds Mountain Park has added other fun activities, including an obstacle course, zip lines, climbing wall, gemstone panning, twisty adventure slide and a 40-mph aerial ...

Neighboring Crystal Cave, which is now known as Floyd Collins Crystal Cave, is one of the most beautiful and impressive caves in Western Kentucky. Even so, the Collins family had a hard time ...