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

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

During the 19th-century, this park was a vital trading fort.

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

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

A chessmaster's dream destination.

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

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

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 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.

This is not your typical jungle gym.

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

The largest mural in the world painted by a single artist.

After retiring, Gary Pendergrass turned his yard into a wonderland of outsider art.

The first "Hut" was actually a small brick building.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

Once in disrepair, the house where the 1983 film was shot has been restored and turned into a museum.

This historic folk art garden contains a nightmare tower that claims to be the world's largest concrete totem pole.

A likeness of Da Vinci's mysterious painting smiles at passersby from the side of a barn.

A natural rock formation believed to be a cure-all.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

To honor his gardening wife, this yard artist turns bowling balls into playful, colorful sculptures.