A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A crumbling hospital from the 1850s on Roosevelt Island.

A toxic ghost town sitting atop a massive coal fire.

World's largest collection of serial killer artwork and other macabre exhibits.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Magical-looking cottages that inspired one of the most famous animated films ever.

The private clubhouse for the members of the Academy of Magical Arts.

This giant temperature attraction created some giant electric bills.

Abandoned Air Force base that has fallen into disrepair.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

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

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

Towering basalt columns, a creation of fire and ice.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A fake town founded by Western movie stars is now becoming a hip desert community.

A music-filled, booze-soaked oasis in the desert.

A former utopian healing center created by a huckster and built by derelicts.

The most isolated mailbox in America lets desert travelers record their passing.

The ghost town that ended up on Ebay.

This dormant volcanic crater has been converted from a roiling pit of magma to a pleasant hiking spot.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

The rocks in this arid basin leave trails of movement behind them.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.