A mental health hospital dating back more than 139 years, now features a museum.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

A fake mine that was made using real mining techniques which is also used as a community center.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

A singular collection of hand-built art deco cars are held in a building with style to match.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A house carved into a rock in the 1940s.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

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

One of the world’s largest living advertisements is made out of pine trees.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

The first artificial white water river course in North America cuts right through an Indiana city.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

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

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.