A museum dedicated exclusively to the lore and history of ouija boards.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

This Gothic castle was inspired by Erik the Red's Viking residence at Brattahlid in Greenland.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

Abandoned businesses, homes, and rusted cars are all that remains of this stopover town.

An entire city block built completely out of petrified wood.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

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

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.

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

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

Just a man taking his prehistoric pet for a stroll.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

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

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

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

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

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

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

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

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

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

A cemetery housing wild west legends in South Dakota.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.