A beautiful geyser under environmental threat.

Home of an evil witch famous within southern folklore.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Home to items never before seen by the public.

Odd outsider art installations surround a Gold Rush-era ghost town.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

Mysterious rocks that ring musically when struck.

Ruins of a German Castle on top of a towering stone pillar.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Northern Ireland's Brobdingnagian stepping stones.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Stroll through a wonderland of stupendous moss-covered trees.

Towering basalt columns, a creation of fire and ice.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Shop selling 500 flavors of soda has something for everyone.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.

The oldest stone house in Paris was built by its most famous alchemist.

Rising from the sea like a stone monster.