A reproduction of earth's many biomes.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

There's nothing creepier than a cemetery next to a clown motel.

Caves full of Buddhist statues, incredible rock formations and a deserted lagoon.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This "floating railway" is one of the world's oldest monorail systems.

Mexican food and folk art.

Rippling sand dunes frozen in the Arizona rock.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

An urban laboratory.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

The largest of London's subterranean rivers and once a mad, bad center of London life.