The lowest point in the state of Illinois, at the confluence of the Mississippi and Ohio rivers.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A small town garden is dedicated to a psychic dog with the most soulful eyes.

This historic cliffside mansion uses a natural cave for air conditioning.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

University City's quirkiest resident lives in a park named after its first.

Like Stonehenge, but with boats and oodles more charm.

A kitschy, creepy St. Louis mainstay.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

A chessmaster's dream destination.

An urban forest overtakes what was the greatest failure of utopic urban housing.

This is not your typical jungle gym.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

This recently restored timepiece has stood all around Kansas City.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

A toxic ghost town sitting atop a massive coal fire.

Curious cave that stays a cool 56 degrees all year long.

European castle ruins in an American state park are actually the product of death and grief.

A reproduction of earth's many biomes.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

What is the Thing?