America's only city hall with minarets took architectural cues from Ali Baba and the Forty Thieves.

Over 120,000 curious objects that have shaped our modern world.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

The most powerful waterfall in all of Europe.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

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

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

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

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

California's largest steel arch bridge.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

Cemetery featuring rare glass-fronted columbarium.

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 morbid, delightful curiosity shop offers everything from animal bones to human teeth.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

A strange rock in Chicago marks the spot where a tree once stood in honor of the 18th President.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

This small, but long-running hobby club has built one of the largest model rail lines in the US.