America's most famous piece of self-built architecture.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

Visitors flock to see this church tower's unintended feature: It happens to resemble a giant chicken from multiple points of view.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

This ghost town was once a cult-like religious utopian settlement.

A house carved into a rock in the 1940s.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

A Mars simulation in the southern Utah desert.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

This large, castle-like structure is hidden amid the mountains on the grounds of the Utah State Hospital.

A replica that won't float away.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

Like a kitschy mirage in the Mojave, this eatery serves up classic 50s-style diner meals and a dinosaur sculpture garden.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

This vintage animatronics show is the Vegas version of a walk through the woods.