This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

Cold War missile launch site which has been converted to a public park.

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

The 606 is a decade in the making.

Beloved bar home to musicians of all eras and reputations.

Former meatpacking facility turned vertical farm and sustainable business complex.

Cemetery featuring rare glass-fronted columbarium.

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

Years of archaeology, just chillin' by the water cooler.

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

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

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

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

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

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The former home of the "Mother of Father's Day."

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

The final resting place of the world's first nuclear reactor.