The Bong-area park police have asked visitors to please, stop stealing the signs.

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

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

Wisconsin's most celebrated export gets the royal treatment on I-94.

Robots, lasers, and whoopee cushions, oh my!

A bizarre house filled with an astounding array of collections.

Once an ornate movie theater remade by Catholic Charities.

Hot Doug's "Hot Dog" Stand.

A theater sits abandoned on Roosevelt Road, once majestic in splendor, now majestic in decay.

The palatial McDonald's that inspired Wesley Willis.

A European-style bath house in Chicago.

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

Pizza with a side of fine art.

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

Landmark Chicago building narrowly avoided destruction.

Honoring Italian greats from Joe DiMaggio to Rocky Marciano.

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

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

G.V. Black, the Father of Modern Dentistry, keeps an eternal eye on Chicagoan’s teeth from his perch in Lincoln Park.

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

Huge abstract sculptures of the Puerto Rican Flag.

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

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

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