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

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

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

Man-made geyser that rises to the exact height of the Gateway Arch.

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

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

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

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

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

This is not your typical jungle gym.