The world's largest rotating world.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Once known as the Illinois Asylum for the Incurable Insane.

The faint remains of a Polish news empire still linger.

A former atom smasher turned into an art gallery.

The young Black revolutionary was killed before getting to see a non-segregated pool in his hometown.

This rare female version of the Muffler Man has its clothes removed each summer to signal the start of pool season.

A mini Wrigley Field for mini baseball players.

This historic store hides a museum exhibiting a shoe-sizing x-ray machine and a pair of kicks that once belonged to the world's tallest man.

With 8,000 pipes this giant instrument is the most versatile theatre pipe organ ever built.

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

This softly rounded mansion was built without corners not to avoid evil spirits, but to make them more comfortable.

This landmark of the Chicago silent film industry may not be in the picture business anymore but it still stands proudly.

Orthodox church partially financed by Tsar Nicolas II.

These abandoned grain silos and tunnels are an urban exploration dream.

This overgrown Illinois water park offers a whole new type of adventure.

The 606 is a decade in the making.

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

First planned industrial community in the United States.

In one Chicago park, a trio of werewolves are waiting to devour their fallen brethren.

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

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

A Bibliophile's Dream.

This simple home was the beginning of a long journey for the iconic Western film star.