A relic of the Cold War in Chicago.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Beloved bar home to musicians of all eras and reputations.

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

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

The palatial McDonald's that inspired Wesley Willis.

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

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

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

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A speakeasy takes on Chicago's drinking culture.

A monument to the art of slicing people open.

A Bibliophile's Dream.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A fitting attraction for the corn capital of the world.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

The oldest university museum west of the Mississippi retains its 19th century feel.

A downtown park built on top of unclaimed graves.