More than two kilometres beneath the surface of the western Caucasus Mountains lies the deepest known cave on Earth. Known as Veryovkina Cave, this vertical limestone system descends to a measured ...

(via MinuteEarth) Krubera Cave, one of our planet’s deepest known caves, extends 2200 meters into the earth – that’s a depth of nearly six Empire State Buildings. Or at least, that's as far down as ...

Read a National Geographic magazine article about Krubera Cave and get information, facts, and more about cave exploration.

Add Yahoo as a preferred source to see more of our stories on Google. Texas Game Wardens A researcher was rescued from one of Texas' deepest known caves, according to the Texas Game Wardens. In a ...

Add Yahoo as a preferred source to see more of our stories on Google. A dramatic incident inside Terrell County's Sorcerer's Cave, one of the deepest known caves in Texas, sparked an emergency rescue ...

"What am I looking for in this cave? I never felt like I fitted in, but the moment I put my head underwater it was like a refuge for me." Dogwoof & Madman Films has revealed the official trailer for a ...

Could Homo sapiens and an archaic and now-extinct species of early human have lived alongside each other on the Indonesian island of Sulawesi more than 65,000 years ago? This is the question posed by ...