With over 4 miles and seven stories full of unique rock formations and water streams, this underground cavern is one of the ...

This walkthrough takes you inside Sung Sot Cave, the largest and most famous cave in Ha Long Bay. The video highlights ...

Deep underground in a dark, sulfuric cave on the border between Albania and Greece, scientists have made an incredible discovery – a giant communal spider web spanning more than 100 square meters ...

Divers in Mexico's Yucatan Peninsula say they have discovered the world's largest underwater cave. Underwater archaeologists discovered last week that the cave system known as Sac Actun, located near ...

From indigenous earthworks to islands to caverns, Ohio has many natural wonders. Here are 5 spots in Ohio we're thankful for.

Serban Sarbu, a cave scientist, thought he’d seen everything — until he entered a pitch-black cave along the Albania–Greece ...

Learn more about how scientists uncovered an unlikely community of arachnids in Europe’s Sulfur Cave and why these spiders ...