This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The start of the group that straightened the teeth of a nation.

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

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

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

Reproductions of nine banned oil paintings coyly hidden behind a curtain in a New Mexico conference room.

A technicolor place of worship for Elevationists.

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

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

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

The largest source of fossilized insects anywhere.

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

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

The final resting spot of the Colorado Transportation Department's beloved unofficial mascot.

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

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

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

The world's longest known cave system.

The first declared National Monument in the United States.

A cemetery housing wild west legends in South Dakota.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.