An ode to South Dakota's state fish.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.

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

An entire city block built completely out of petrified wood.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

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

A devilishly named gorge that was a sign of salvation for many pioneers.

This Wyoming town is fascinated by a particular mythical creature.

Population: 1.

The first railway tunnel to cross the Continental Divide and, at 11,523 feet, was once the highest railroad tunnel in the world.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The highest bridge in America was built for an almost unnervingly small amount of money.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

One of few remaining antique carousels with stationary animals in the U.S.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The largest source of fossilized insects anywhere.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

This enigmatic building features numerous architectural styles.