Years of archaeology, just chillin' by the water cooler.

These pretty kitties killed and ate as many as 135 railway workers.

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

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

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

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

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

A beloved Chicago music venue offering cold beer and lots of “Friendly."

Huge abstract sculptures of the Puerto Rican Flag.

An enormous park-like oasis, full of famous Chicagoans' graves.

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

What was once one of the country's largest confectionary plants is now an abandoned ruin, but is still pretty sweet.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

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

Museum dedicated to the art of cutting and polishing stones.

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

Despite its name, this fast food museum is actually a replica of the ninth McDonald's store.