The deepest caves on Earth are still being studied by scientists. They are unique environments created over millions of years ...

Vietnam's Son Doong, the world's largest cave passage, started its life millions of years ago as a crack the width of a piece of hair. Today, adventurers marvel at the surreal caverns in its depths.

HANOI: A large cave featuring an usually tall waterfall has just been discovered in the Phong Nha–Ke Bang National Park in ...

The longest known underwater cave in the world is even longer than we thought. As of the start of this year, cave divers have mapped 524 kilometers (325.6 miles) of a subterranean water 'web' near ...

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 ...

Missouri is home to thousands of caves, but this one in the Ozarks stands out among the rest. It dates back to the Ice Age ...

The Tentative Lists of States Parties are published by the World Heritage Centre at its website and/or in working documents in order to ensure transparency, access to information and to facilitate ...

Beneath the lush rainforests of the Yucatan Peninsula lies a hidden, subterranean world: a vast network of flooded sinkholes ...