Hot Doug's "Hot Dog" Stand.

The palatial McDonald's that inspired Wesley Willis.

In one Chicago park, a trio of werewolves are waiting to devour their fallen brethren.

Landmark Chicago building narrowly avoided destruction.

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

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

Once an ornate movie theater remade by Catholic Charities.

Huge abstract sculptures of the Puerto Rican Flag.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

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

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

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 goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

Illegal drag racing two stories beneath Chicago’s streets.

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

No one knows how many bodies are in this vault in a Chicago public park.

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

Orthodox church partially financed by Tsar Nicolas II.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

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

To find the "unicorns of the deep" you've got to go downstairs.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.