Colorado's oldest church is now home to the largest handmade adobe labyrinth in the world.

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

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.

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

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

Only a few signs remain of the buried Colorado mining town that supplied the uranium for the first atomic bomb.

This Colorado fire station has been in continuous operation for more than a century.

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

The giant stump of the once towering cottonwood where Ute people held tribal meetings.

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

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

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

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

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

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

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

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

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 marker identifies the location where three states converge.

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

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

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

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