This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

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

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

A wax effigy of St. Valentine hides one of the saint's relics.

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.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

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

A chessmaster's dream destination.

A floating museum that was sunk by a flood and left to rot in the tides.

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.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

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

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

An abandoned factory along the Mississippi coated by a giant mural.

A notorious Route 66 eatery once frequented by Al Capone.

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

An abandoned meat mecca now serves as an excellent locale for urban exploration.