The old fire tower is one of the last of its kind in the United States.

These giant metal horses graze on a hilltop near the Montana highway.

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

One man's ambition created this psychedelic log home.

At the time of its completion, it was the tallest dam in the world.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

A fitting attraction for the corn capital of the world.

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

Just a man taking his prehistoric pet for a stroll.

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.

One of the first intercontinental ballistic missile sites in the United States.

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

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

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

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

A cemetery housing wild west legends in South Dakota.

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

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

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

The first declared National Monument in the United States.

An exotic reptile facility showcasing some of the rarest, most venomous snakes in the world.

A curious collection of oddities including a lock of Alexander Hamilton's hair and Harry Houdini's ouija board.

From failed port town to Civil War fort, the ruins of this former defense saw their finest day in the television age.