In this video, we visit a massive cave that holds the deepest pit in America ... weekend The Top 20 Rarest & Most Expensive Cars in the World The Best Burger in Every State ...

Ever since 1956 ... to Krubera Cave drops down a chain of pitches, cascades, and pits—some more than 100 meters (328 feet) deep—connected by narrow rift passages called meanders.

In Mandarin Chinese, the word "tiankeng" directly translates as "heavenly pit" or "sky hole," a ... you'll find Xiaozhai ...

With a depth of around 2,199 metres, a cave in Georgia is so deep that nearly seven Eiffel Towers could fit inside.

The tiny Chinese drone survived a mission to the bottom of the Mariana Trench - the deepest pit in any of the world's oceans. The high-tech explorer marks a revolution in the world of deep-sea ...

The tiny Chinese drone survived a mission to the bottom of the Mariana Trench - which is regarded as the world's deepest pit in any of Earth's oceans. While its search for those pesky deep-sea 'aliens ...

At 131 feet to the bottom, the Y-40 pool at the Hotel Terme Millepini in Italy is officially the deepest swimming pool in the world, according to Guinness World Records. That's essentially as deep ...