This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

This former mining town was named the most toxic town in America.

An acoustic anomaly with a mysterious cause.

Nature's biggest mammal swims in landlocked Oklahoma.

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

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

Home of mutant livestock.

When ecosystems collide in the arid Southwest.

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

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

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

A downtown park built on top of unclaimed graves.