An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

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

In the 1950s, two women saved this grand theater in the Colorado mountains from demolition.

The home of a formerly enslaved man who went on to become a prospector, entrepreneur, and activist for Black rights.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

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

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

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

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

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

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

When ecosystems collide in the arid Southwest.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

A hotel with a rich Wild West history of miners and bootleggers.

One of the American Southwest's most extensive collections of Navajo rock art.

The hallowed remains of a 900-year old Ancestral Pueblo great house.

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

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

A whimsical roadside community of little metal people.

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