Native Americans built this circle of stones, which was used to predict astronomical events.

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

One man's ambition created this psychedelic log home.

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

A beautiful geyser under environmental threat.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

This Wild West attraction is alive with glitching automatons.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

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

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

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

Just a man taking his prehistoric pet for a stroll.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

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

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

The pharmacy's retro ice cream mixer is one of the last of its kind.

This stone, said to have once been a young woman, is sacred to the Dakota and Lakota nations.

Mennes invented the tags we all place annually upon our license plates, and his story is told frankly and in full upon his headstone.

Only place outside China and India where two overhead DC power lines cross.