It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

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

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

The remains of an early 1900s dude ranch that operated until the 1970s.

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

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

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

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

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

A prehistoric rock shelter that's literally in someone's backyard.

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

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.

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

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

The final resting place of a 19th-century gold prospector and convicted cannibal.

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

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

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

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

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

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

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.