These abandoned grain silos and tunnels are an urban exploration dream.

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

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

First planned industrial community in the United States.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

In a quiet north Chicago neighborhood rests a stunning relic of the golden age of earthenware design.

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

Chicago was once a major hub of film production, but being silent film you don’t hear much about it.

These mansions date back to Chicago's days as a brewer's paradise.

Orthodox church partially financed by Tsar Nicolas II.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

One of the last functioning antique elevators in Chicago.

This small, but long-running hobby club has built one of the largest model rail lines in the US.

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

A century-old network of freight tunnels underneath the city's historic business district.

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

The 606 is a decade in the making.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

Cemetery featuring rare glass-fronted columbarium.

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