Caves

A giant repository of accidentally discovered cave paintings up to 30,000 years old.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

A three-tiered waterfall plummets from a mountain cave with amazing views over the countryside.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

This sacred, circular cave is lined with pools so clear and still that it's hard to tell where the water begins.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

At 705 feet high, Brazil's "House of Stone" is the largest cave mouth in the world.

The subterranean sanctuary home to local shamans is a sacred site for people of all religions.

The remains of a 37,000-year-old prehistoric society were discovered in this mammoth cave, one of the largest in Asia.

A cave 150 feet beneath Kansas City is the perfect climate for growing 10,000 delicate orchids.