Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

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

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

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

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

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

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

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

Travel through the wholesome amusements of yesteryear at this charming miniature village.

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

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

The clock that sets them all.

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

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

The highest bridge in America was built for an almost unnervingly small amount of money.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This naturally-sourced hot spring is now home to a clothing-optional resort.

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

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.