The world's largest collection of the world's largest objects is in one small Illinois town.

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

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

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

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

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

A hollow cement depiction of time's inexorable effect on the human body.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

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

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

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

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

A monument to the art of slicing people open.

All of Chicago's wood-paved streets are long gone but two alleys remain.

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

The subtle science of a master molecular gastronomist.

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

The first and only museum dedicated to stained glass and horology opened outside of Chicago in 2017.

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