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

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A display of magnificent stained glass windows is the first exhibit of its kind.

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

This historic hotel invented the chocolate brownie.

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

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

Huge abstract sculptures of the Puerto Rican Flag.

Hot Doug's "Hot Dog" Stand.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

The sign to a demolished amusement park now stands in front of a local library.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

A towering Art Deco movie palace made to look like a Mayan temple.

A bizarre house filled with an astounding array of collections.

A wonderfully curated used bookstore in an airport.

What appears to be a wizard's lair in Milwaukee actually houses a massive water pipe.

This striking art museum holds an amazing series of curiosity cabinets.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

A place to eat for on-the-run agents and espionage enthusiasts.