A small flooded ghost town with a few scattered structures remaining.

One of few remaining antique carousels with stationary animals in the U.S.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

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

Even in death, he's still your huckleberry.

The largest source of fossilized insects anywhere.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

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

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

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

When ecosystems collide in the arid Southwest.

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

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

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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."

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Supposedly Satanic numbers adorn this preserved submarine sail.