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

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

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

Abandoned silver mine strewn with wrecked and twisted structures.

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

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

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

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

Step into the cool deep past and unknown future of who begat who.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The first declared National Monument in the United States.

This sky-high radio mast is formerly the tallest man-made structure in the world.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

One man's quest to save his town with a trail of record-breaking sculptures.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

The world's largest Holstein cow.

A true roadside icon standing on the same plains that the herds once roamed.

Three legendary, living albino buffalo roaming their pastures for all to see.

The resting place of a Civil War celebrity's amputated limb.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.