Largest outdoor staircase in the United States.

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

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

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

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

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

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

A wonderfully curated used bookstore in an airport.

This storied music venue was once a tavern that housed an Italian Anarchist book club and prohibition parties; today it's a community space for artists and musicians.

Once a speakeasy operated by Al Capone, this Milwaukee cigar bar is now a haven for ghost hunters.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

This striking art museum holds an amazing series of curiosity cabinets.

A place to eat for on-the-run agents and espionage enthusiasts.

According to the legend, this strikingly beautiful hill has miraculous healing powers.

A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

A unique botanical garden housed in three giant geodesic domes.

Robots, lasers, and whoopee cushions, oh my!

One of Frank Lloyd Wright's final works was this UFO church.

The oldest continuously-operating tavern in Wisconsin used a clever loophole to serve alcohol during Prohibition.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

Walk up a ramp through a forest for panoramic views of Lake Michigan.