A long lost multi-cultural music venue used to reside in the bottom floor of Chicago's Flat Iron Building.

A Bibliophile's Dream.

One of the last functioning antique elevators in Chicago.

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

Former bath house turns gastropub.

"No writer ever gave more to a city and got back less.”

A European-style bath house in Chicago.

Beloved bar home to musicians of all eras and reputations.

Huge abstract sculptures of the Puerto Rican Flag.

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

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

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

The oldest house in Chicago certainly doesn't look the part and there are some who say it doesn't deserve its title either.

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.

Former meatpacking facility turned vertical farm and sustainable business complex.

This historic store hides a museum exhibiting a shoe-sizing x-ray machine and a pair of kicks that once belonged to the world's tallest man.

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

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

First planned industrial community in the United States.

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

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.