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

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

This historic stone barn is the former home of legendary cattleman Charles “Lonesome Dove” Goodnight.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

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

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

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

This enigmatic building features numerous architectural styles.

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

One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.

A unique arch graces the Dolores River Canyon near the Hanging Flume.

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

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.

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

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

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

A coal fire has been burning underground here since 1896.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

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

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

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.