Some of the ancient-looking huts among these strange rock formations aren't ancient at all, but built as part of a movie set.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

Created as a coal reserve, it is today a natural park with stunning wildflowers, ancient marine fossils, and remnants of a 19th century mine.

A poignant memorial to a young boy whose death spurred a dramatic increase in organ donations in Italy—dubbed the "Nicholas Effect."

This mysterious underground cave in Shropshire dates back to the 18th or 19th century.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Hundreds of hopeful gold miners came here to get rich, but only two years later the small town was deserted.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

The world's longest and deepest train tunnel.

A Japanese train station built around a 700-year-old camphor tree.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

A local dialect born in the late 19th century is only spoken in this isolated California valley.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

A fairy garden in an old hotel hidden in La Marquesa forest.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

A popular day's outing in Bovington consists of watching military tank driving practice.

The Arctic Circle runs through this isolated spot north of Iceland.

A tiny but mighty little pumper sits in the middle of the street, waiting for the next big oil strike.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.