One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

Possibly the world's only drive-in movie theater with an attached motel.

When ecosystems collide in the arid Southwest.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

America's smallest town is run by its single citizen/mayor/librarian/bartender.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

A research lab and hands-on museum where visitors can experiment with retro technology.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

This Croatian computer club features such gaming relics as the infamous Virtual Boy and an 8-bit Pacman machine.

Space-age monument to an early 20th-century uprising.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This cubist Vienna church building looks like some sort of alien stonehenge.

What almost started out as a spite house became an eccentric's found object masterpiece.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.