A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Where unreadable addresses are read, 24 hours a day, seven days a week.

Once the gateway to the utopian dream-village of a Civil War embalmer.

Former utopian colony based on the belief that the universe exists in a hollow sphere.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Where America's first doomsday cult awaited the end of the world.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The remnants of a failed socialist commune can still be found just off a California highway.

Henry Ford's failed rubber plantation in the middle of the Amazon rain forest.

The library of every book lover's dreams.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

A vast and unlikely aviation museum kept alive for over 50 years due to one man's tenacity.

A collection of noses tucked inside an art museum reveals how times have changed.

Garden dedicated to native carnivorous plants and site of huge flytrap heist.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

It is against the law to obstruct the view from the top of this English burial mound.

This circular Iranian jail was once a political prison run by the country's secret police.

Unlike many reclaimed, abandoned mines, this Canadian cave system is still just a dangerous maze.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

The birthplace of a titan of American cinema.

This Chinese museum proves that it's a watermelon world, we're all just living in it.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.