Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

Its eclectic exhibits range from the world’s first motorcycle to Luke Skywalker’s Land Speeder.

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

Planes, trains, and automobiles have all been sunk as attractions at this Illinois diving spot.

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

This historic lavatory leftover features two levels of defecation stations completely without context.

A sprawling museum filled with larger-than-life works of art.

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

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

Buy a token from the liquor store and you can make this beast spew flames on command.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

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

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

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

Where Cusack's record store from the film "High Fidelity" was located.

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.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

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

A science teacher's dream.

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

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

This historic early-20th-century building still boasts some of its original features.