This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

The Grand Canyon of Texas.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

Once named the “world’s oldest gas station” due to its unusual construction material.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

This Wyoming town is fascinated by a particular mythical creature.

Elvis's own personal tropical hideaway.

Eclectic musical collection ranging from hurdy gurdies and orphicas to the Rolling Stones Mobile Studio.

A classic carnival ride that was carved to be untouchable.

New fungal and bacterial species call this deadly lake home.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

Multiple monuments to a grizzled old mutt that survived the landscape of Butte's treacherous Berkeley Pit.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

One of the smallest towns in the United States.

The final resting spot of the Colorado Transportation Department's beloved unofficial mascot.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.