The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

A 19th-century horse lover's bequest led to the construction of this unique fountain in Chicago.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

The carved remains of a 200-year-old oak tree memorialize the namesake of the iconic "Wizard of Oz" character.

A collection of 11 million buttons illustrates the human toll of the Holocaust.

One of the first historical sites of an alternative universe was installed in the town of Paris, Illinois—which is now home to an annual spelling bee of Kcymaerxthaereal words.

This folk art wall claims to be the world's one and only memorial to the bygone age of hippies.

More than 8,000 drinking jugs say “Cheers!” to a guy named Toby.

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

This tiny historic jail along Route 66 is the perfect fit for exactly one criminal and their partner-in-crime.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

A military museum and library dedicated to the citizen soldier.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

Museum dedicated to the art of cutting and polishing stones.

This cemetery is all that remains of a school for "wayward" girls.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

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

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

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

Tour the luxe "glass cage" that inspired and unnerved the architecture world upon its debut.

Spanking machines, fake goats, and more devices of humiliation are on display in this museum of fraternal initiation devices.

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

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