A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

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

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

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

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

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

Illegal drag racing two stories beneath Chicago’s streets.

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

The 30,000-volume library is one of the world's most impressive poetry collections.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

A military museum and library dedicated to the citizen soldier.

An eccentric park and pool.

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

Former bath house turns gastropub.

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

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

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

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

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Home to a protest movement, a bombing, and a dramatic change in labor history.

A hot dog stand where the heads are just as hot as the dogs.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.