A pair of gargoyles peer into unsuspecting passengers at Denver’s conspiracy-packed airport.

This ancient structure is widely thought to be the oldest intact pyramid in the world.

A strange and ancient landscape hides the dark, cavernous remains of a 5,000-year-old flint mine.

A frozen oasis lies beneath the scorching New Mexico desert.

Most-visited and most-photographed slot canyon in the American Southwest.

Ever wanted to can Spam?

The only bridge in the United States where BASE jumping is legal without a permit year-round.

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

One of the "twins" in these falls on the Snake River was sacrificed for hydropower generation in the 1930s.

The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

This museum started by a curious collector is now a place for believers and skeptics alike.

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.

The first declared National Monument in the United States.

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

A bizarre house filled with an astounding array of collections.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

A spiritual vortex among the red rocks in Sedona.

A museum dedicated to the alleged Roswell Incident.

Despite a legend that says this highest peak in Oregon was climbed in high heels, scores of people have died on its slopes.

This 11th century tower is said to be the oldest building in Oxford.

Every president in history is immortalized in bronze in downtown Rapid City.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.