A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

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

Two creeks flow out of either end of this canyon in opposite directions.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

Over 1.3 million confiscated wildlife products fill this macabre menagerie of illegal animal specimens.

A river runs through this remote valley in a very unexpected way.

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

A mental health hospital dating back more than 139 years, now features a museum.

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

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

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

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

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

A collection of fading fantasy tchotchkes lines this dirt road in the Colorado wilderness.

This museum offers an actual time machine back through Colorado's past.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

A downtown park built on top of unclaimed graves.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.