This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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.

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

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

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

You thought Santa Claus didn't exist, but it turns out you were wrong.

The first KFC is on the National Register of Historic Places.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

A bypass decorated with large wooden troll carvings.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

More than 5,000 contemporary and "historic" mustards from around the world.

A theme park attraction designed to turn your children into LARPers.

This cave holds a surprisingly colorful variety of geological oddities.

A bizarre house filled with an astounding array of collections.

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

California's own majestic geyser is powered by a subterranean volcano.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

An homage to everyone's favorite prehistoric cartoon family.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.