The Hranicka Abyss is at least 1,325 feet deep, and likely goes down further. — -- A team of explorers believe they have discovered the deepest known underwater cavern the world in eastern Czech ...

Russian explorers discovered a lifeless body hanging deep inside Veryovkina Cave, the world’s deepest known cave. 35 shot, 5 dead, in Chicago amid Trump's threat to deploy National Guard Bruce ...

The idea of disappearing into some of the world’s deepest pockets submerged in pitch black water, with only the sound of ...

This 2020 astronaut photo shows the unusual cetacean-like shape of Belize's Lighthouse Reef. It's home to the famous Great ...

The origin story of Hells Canyon, North America's deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event ...

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 ...