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

A museum dedicated to the alleged Roswell Incident.

Oddly shaped rock formation, misassociated with a nearby utopian community.

A monument to a survivor of harsh pioneer life, frostbite, and primitive surgery.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Despite its name, this route in southern Utah offers a heavenly day trip.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A smoke stack so large, the Washington Monument could fit inside!

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

Boise State's stadium was the first non-green football field in the world.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

The mayor made the declaration in 2004.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Decommissioned experimental solar facilities that pioneered solar energy technology.

This giant temperature attraction created some giant electric bills.

Steepest flood safety railway in the entire world.

Supposedly Satanic numbers adorn this preserved submarine sail.

The largest island on the great salt lake is home to curious creatures and strange stories.

Jurassic Park—A Still Life.