First planned industrial community in the United States.

A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

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

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

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

It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

An avant garde art museum at the University of Chicago.

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

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

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

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

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

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

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

An antiquated German apothecary on Chicago's North Side.

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

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

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

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.