The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A trash dump made beautiful by nature's power.

A formerly abandoned mental institute, now back in business.

There must be a pun in this haystack somewhere...

The most confusing clock in New York.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

Elevated freight railway turned wildly successful urban park.

Behold the rickety glory of one of the oldest roller coasters still standing.

An outlandish shoe shaped house built by an eccentric millionaire.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A failed piece of Orientalism has become the proud symbol of a community.

In which a local geological marvel becomes a quaint roadside attraction.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

A toxic ghost town sitting atop a massive coal fire.

Copenhagen's celebrated theme park and gardens.

A little sculpture with a large wardrobe.

A man-made island in scenic San Francisco Bay.

Tiki luxury on Nob Hill.

A winding path built in secret on the edge of the continent.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A daily replay of the experiment that proved the rotation of the Earth.

This elaborate towering structure was once famed for its revolutionary height.

The world’s first penitentiary, meant to be humane, drove men insane.