A bizarre house filled with an astounding array of collections.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

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

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

A church of bones, decorated with 40,000 human skeletons.

Hidden amid the old-world charm of Savannah is a museum dedicated to the world of oddities and criminal history.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

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

When ecosystems collide in the arid Southwest.

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

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

Community owned and operated, this property is home to a diverse set of nudists.

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

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

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

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

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

The largest source of fossilized insects anywhere.

A downtown park built on top of unclaimed graves.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

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