Central City celebrates its most famous madam by racing beds down Main Street.

Birds with backpacks expedite film development for a rafting company on a remote Colorado river.

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

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

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

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

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

Colorado's only true geyser is hidden within the San Juan National Forest.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

This iconic science fiction house still looks like something from the future.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

This spectacular track has run continuously since 1882.

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

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

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

A little-known hot spring haven right below the highway.

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

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

Abandoned silver mine strewn with wrecked and twisted structures.

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

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

When ecosystems collide in the arid Southwest.