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

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

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

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

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

South Dakota's oldest operating brewery is housed inside a historic firehouse.

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

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

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

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

The first declared National Monument in the United States.

Abandoned silver mine strewn with wrecked and twisted structures.

A recreation of an Old West apothecary full of curios.

A hotel with a rich Wild West history of miners and bootleggers.

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

Legends surround this jagged rock formation in the New Mexico desert.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

See massive fossils that are over 200 million years old in northeastern Arizona.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

What is the Thing?

Limestone caves with spectacular showcase chambers.