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

A huge musical instrument played by the ocean.

The classic Atari game's iconic aliens have invaded downtown San Diego.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

The eroded core of an ancient volcano is now accessible by a short hike.

An homage to everyone's favorite prehistoric cartoon family.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

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

One man’s passion for gas stations is on display along the Rio Grande in northern New Mexico.

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

This popular pilgrimage site offers a hole filled with holy healing dirt.

A natural formation that resembles a camel resting in the New Mexico desert.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

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

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

At this research institute, the chile is king.

An ode to the friendship between four Pacific Rim countries.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

Peace Park and the Atomic Bomb Dome.

A Japanese corporation has turned this small island town into living modern art gallery.

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

Japanese national treasure originally built in 593 CE.