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.

Cemetery featuring rare glass-fronted columbarium.

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

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

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

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

A science teacher's dream.

The subtle science of a master molecular gastronomist.

This unauthorized stone mermaid was secretly carved out of public stone before being permanently preserved.

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

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

An antiquated German apothecary on Chicago's North Side.

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

A Bibliophile's Dream.

A monument to the art of slicing people open.

A lush green oasis in the middle of Chicago.

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

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

World's second largest particle accelerator, where nature reveals its secrets.

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