A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A former chicken restaurant that doubled as a speakeasy is now a quirky home full of wonderfully strange traditions.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

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

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

A recreation of an Old West apothecary full of curios.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

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

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

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.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

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