The last masonry skyscraper ever built reveals a transitional moment in architectural history.

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

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

Illegal drag racing two stories beneath Chicago’s streets.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

One of the last functioning antique elevators in Chicago.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

The 606 is a decade in the making.

An avant garde art museum at the University of Chicago.

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

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

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

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.

The beloved home to all publications indie, erotic, and punky.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

These abandoned grain silos and tunnels are an urban exploration dream.

All of Chicago's wood-paved streets are long gone but two alleys remain.

Internationally known record store and purveyor of "dusties."

A gothic church spire sits atop this skyscraper, the tallest church in the world.