A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

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

Yo, Adrian!

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

Illegal drag racing two stories beneath Chicago’s streets.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

The palatial McDonald's that inspired Wesley Willis.

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

This historic hotel invented the chocolate brownie.

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

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

An antiquated German apothecary on Chicago's North Side.

A lush green oasis in the middle of Chicago.

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

A monument to the art of slicing people open.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

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

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.