This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

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

This modest post office sits on the site of H.H. Holmes' famous murder castle.

Former hotel turned into haunted playground.

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

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

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

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Cemetery featuring rare glass-fronted columbarium.

Beloved bar home to musicians of all eras and reputations.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

Shop of curiosities with a dinosaur museum tucked in its basement.

A science teacher's dream.

The subtle science of a master molecular gastronomist.

This shop for all your super spy needs hides an educational secret.

Illegal drag racing two stories beneath Chicago’s streets.

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

A chance to follow in the footsteps of the word's most legendary animator.

Former bath house turns gastropub.

One of the last functioning antique elevators in Chicago.

The world's only known button museum.

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

Hot Doug's "Hot Dog" Stand.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.