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

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

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

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

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

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

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

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

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

A little-known hot spring haven right below the highway.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

A museum of natural history, Edwin Carter's original log cabin home and workshop houses taxidermy specimens.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

A roadside attraction filled with an astounding array of gloriously wacky vehicles.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

All that remains of this once-booming mining town are the ruins of a saloon.

This nearly abandoned town was once a thriving mining community until a series of fires.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

This shrine is an ode to the region's rich Hispanic heritage.

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

A riverside tiny house with books and other treasures galore.