The world's largest model of our planetary system.

“You better take care of me Lord, if you don't you're gonna have me on your hands.” ― Hunter S. Thompson, Fear and Loathing in Las Vegas.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

"There's nothing there," and other lies the KGB told us.

The site of a tragic massacre that spawned a multimedia franchise.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This "floating island" plateau sits 7,671 feet above the forest floor.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Largest collection of mounted dinosaur specimens in the world.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Defying all odds, this lonely little tree found a home on a log sticking out of a Canadian lake.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Abstract dinosaur models in London.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

An urban laboratory.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.