This modest post office sits on the site of H.H. Holmes' famous murder castle.

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

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

Home to a protest movement, a bombing, and a dramatic change in labor history.

A beloved Chicago music venue offering cold beer and lots of “Friendly."

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

First planned industrial community in the United States.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

A hollow cement depiction of time's inexorable effect on the human body.

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

A Museum of Holography frozen in 1974.

A science teacher's dream.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.