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.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

Take a dip in the world's largest mineral hot springs pool.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

The largest source of fossilized insects anywhere.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

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

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

This hot dog-shaped diner has moved all around Colorado, never been to New York.

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

A surprising collection of bronze faces beneath a bridge in Loveland.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

It's easy to forget what century it is as you wander this rustic homestead.

This massive home was constructed by one of the greatest conservationists in Colorado history.

A downtown park built on top of unclaimed graves.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.