The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

Erosion and time have created a naturally-formed water park.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Race through the maze, get your name on the sign.

You were once able to challenge a chicken to tic-tac-toe at this park, which is now converted into the Aikman Wildlife Adventure.

Giant granite rocks standing end-to-end like a train of circus elephants.

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

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Less a museum than a bizarre fantasy world created by artists and engineers.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."