The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

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 surprising gem is a world-class archeological museum hidden at the University of Chicago.

These pretty kitties killed and ate as many as 135 railway workers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

A lush green oasis in the middle of Chicago.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The longest of the four remaining covered bridges in Missouri.

A version of this picturesque mill has existed since the 1800s.

A historic, scenic mill that was forced to close due to overlogging.

An average of 33 million gallons of water pour out of the collapsed cave at the heart of this spherical spring.

The deepest spring in Missouri.

Often referred to as the largest spring in America.

This museum features the original car used on the Beverly Hillbillies sitcom.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

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

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

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

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

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

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.