One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A house carved into a rock in the 1940s.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

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

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This super steep hike ascends 2,000 feet in less than a mile.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

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

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

The largest source of fossilized insects anywhere.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

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

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.