A team of cave explorers has uncovered a hidden forest deep inside a massive sinkhole in southern China. More than 600 feet ...

In this footage, a man investigates dangerous, hidden sinkholes that could pose a serious risk to others. His goal is to ...

Researchers are uncovering how underground water systems sustain the Grand Canyon and how they are changing over time.

Egypt's Red Sea coast is famous for its stunning underwater caves, which offer unique diving experiences. These natural ...

California usually brings to mind palm trees, surfboards, and sunburned beach days. That’s what makes this place feel so ...

Son Doong, the world's largest cave passage — big enough to fit a skyscraper — is deep inside a Vietnamese jungle. Exploring the dark caverns, home to beautiful rock formations and a river, takes days ...

There’s Nothing Down There is a short undersea horror exploration game. Descend into a sinkhole at the bottom of the ocean ...

These Florida state parks rival national parks with clear springs, beaches, and wildlife, without the overwhelming crowds ...

The US is aiming to be the first country to land humans on the lunar surface again by 2028 - so what's this mission for?

Florida is famous for many things, but dramatic underground cave systems typically aren’t on that list. Yet Florida Caverns ...

Guidebooks might mention this place, but they can’t capture its true magic. Ha Ha Tonka State Park features stone castle ruins perched high above the lake. The structure looks like it was transported ...

A couple is speaking out after their car plunged into a sinkhole at an intersection in NW Harris County while driving home ...