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

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

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

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

Curious cave that stays a cool 56 degrees all year long.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

A science teacher's dream.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This holy goods emporium is where priests go for a little retail therapy to outfit their churches.

A large circus museum with summer performances.