Hidden on the 7th floor of a historic building, this Cajun spot features wall-to-wall bottles of hot sauce.

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

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

A century-old network of freight tunnels underneath the city's historic business district.

Also known as the Osaka Garden, this garden was originally built in 1893 as part of the World's Columbian Exposition.

Odd, decrepit fountain honors Chicago author who had mixed feelings about his hometown.

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

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

A one-armed veteran of the Battle of Waterloo lies in a cemetery for one in the middle of a Chicago scrapyard.

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

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Where dioramas can follow you home.

A small Chicago museum filled with thousands of preserved butterflies, beetles, and more.

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

An eccentric park and pool.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

This small, but long-running hobby club has built one of the largest model rail lines in the US.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

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

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

First planned industrial community in the United States.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.