Where manatees are the snowbird vacationers in these balmy Florida springs.

The beautiful, fruit-covered facade hints at this building's former life.

A science teacher's dream.

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

An avant garde art museum at the University of Chicago.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

Chicago's North Park Village was once the largest municipal sanatorium in the country.

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

A Bibliophile's Dream.

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

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

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

Cemetery featuring rare glass-fronted columbarium.

A monument to the art of slicing people open.

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A miniature view of the park, caught in time.

A humid oasis combines recreation with exploration in a unique underwater cavern.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

Florida castle built with aluminum printing plates.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

Like Mardi Gras, only everyone's a pirate.