Millions of dollars worth of sculpture decorate this Iowa city center.

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

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

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

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

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

One of few surviving standpipe water towers in the U.S.

A chessmaster's dream destination.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

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

Home with Gothic windows featured in a famous painting.

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

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

World's first "penitentiary," meant to be humane, drove men insane.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

A museum dedicated to exhibiting remarkable outsider art.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.