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 ...

Why it's incredible: The cave is so deep, the world's tallest building could fit inside it. The Hranice Abyss — or "Hranická propast," in Czech — is the deepest known freshwater cave in the world.

I'm a severe claustrophobe. After getting trapped in a slide in my local McDonald's at five years old, I swore off all tight and dark spaces forever. So it's not entirely surprising that I couldn't ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

BBC Countryfile presenter Matt Baker explored Britain's deepest cave system during Sunday's episode (December 7) ...

Countryfile saw presenter Matt Baker explore Britain's deepest cave system in Wales, where a slamming door left him visibly worried ...

Edmund Hillary and Neil Armstrong are two explorers who have become household names -- but what about Bill Stone and Alexander Klimchouk? In 2004, both men attempted to find the deepest cave on Earth ...

AUSTIN, Texas—Scientists return this week to the world’s deepest known sinkhole, Cenote Zacatón in Mexico, to resume tests of a NASA-funded robot called DEPTHX, designed to survey and explore for life ...

CARLSBAD, N.M. (KRQE) – Carlsbad Caverns National Park in New Mexico is celebrating its 100th anniversary as a national park on Oct. 25, 2023. To this day, the park’s history is still being written, ...