Along with underground adventures, Mammoth Cave National Park in Kentucky offers great hiking and kayaking, too.

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 ...

It was a Cro Magnon opus. Europe might not be the birthplace of human symbolic culture as previously thought. International scientists have discovered a stencil of a hand in Indonesia that dates back ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

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 ...

Every single one of America’s national parks is unique, with a beauty that’s entirely its own. “The park's cave system is the longest in the world, stretching over 426 miles, and offers visitors a ...

In 1879, a landowner and amateur archaeologist named Marcelino Sanz de Sautuola ventured into a newly discovered cave system in northern Spain. Hoping to find prehistoric tools, he kept his eyes fixed ...

Add Yahoo as a preferred source to see more of our stories on Google. An ochre hand stencil found in the jungles of Indonesia is the world’s oldest known cave painting, researchers believe, a finding ...

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 ...