A research lab and hands-on museum where visitors can experiment with retro technology.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

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

A downtown park built on top of unclaimed graves.

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

The remains of the dam that unleashed a 15-foot wall of water on Denver.

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

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

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

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

A home designed to be on the cutting edge of comfortable, low-cost living.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

This artsy public restroom is shaped like a giant john.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

A unique attraction and museum dedicated to exploring iconic roadside structures.