Home of the International Space Hall of Fame.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This is one really big nut.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

A multi-storied adobe complex has been inhabited for more than a thousand years.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

A museum dedicated to the alleged Roswell Incident.

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

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

A downtown park built on top of unclaimed graves.

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

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

When ecosystems collide in the arid Southwest.

The highest bridge in America was built for an almost unnervingly small amount of money.

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

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

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