These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Abandoned silver mine strewn with wrecked and twisted structures.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

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

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

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

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

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

When ecosystems collide in the arid Southwest.

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

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

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

A technicolor place of worship for Elevationists.

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

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The largest self-built castle in the U.S., six decades in the making.

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

This circus town museum recognizes the outstanding clowns of history.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Yugoslavia's biggest underground airport lies in ruins.

A forgotten monument to Yugoslavian freedom.

An abandoned brutalist monument whose history has been lost to the ages.