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

A downtown park built on top of unclaimed graves.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

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.

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

Unlike most arches, this geological oddity formed in a volcanic dike.

This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

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

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

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

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

This memorial pays homage to Pueblo's four Medal of Honor recipients.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

A preserved building where the dead were once watched for signs of life.