This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

One of Frank Lloyd Wright's final works was this UFO church.

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

In Tucson a giant metal snake helps pedestrians cross a busy highway.

The world's first ice hotel is still one of the most elaborate and beautiful.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A Beaux-Arts triumph set to become Ford's innovation campus

The first spinning jail built in the United States is the only one that still turns.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

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

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Every president in history is immortalized in bronze in downtown Rapid City.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The first declared National Monument in the United States.

Supposedly Satanic numbers adorn this preserved submarine sail.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.