Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This abandoned Slovenian military barracks has become a punky-political art squat.

A whimsical bridge adorned with decorative dragons.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

Its history includes dinosaur fossils, cattle rustlers, Georgia O'Keeffe, and a mythical giant rattlesnake named Vivaron.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A multi-storied adobe complex has been inhabited for more than a thousand years.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The ghostly remains of an accidental sea.

This vast and otherworldly landscape is one of the largest dune complexes in North America.

Version of the French Riviera destroyed by the sea.

A hand-built folk art installation covered with messages of God's love.

An off-grid art installation that encourages its visitors to imagine a world without waste.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Macabre astrological automaton clock dating to the late 1400s.

Sample sweets at an Art Nouveau candy shop that's been in business since 1874.

Diego Rivera's massive tiled fountain and failed infrastructure project.