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 ...

Veryovkina Cave reveals more mysteries the deeper you go. Here’s everything that makes this cave a world of its own. Some of Earth’s most extreme frontiers lie beneath our feet, in places so ...

Beneath the Earth’s surface lies a world so extreme and isolated that it seems more like an alien planet than part of our own ...

Scientists first described the flooded cave in 2016 but determined its extraordinary extent years later. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...