No one knows how many bodies are in this vault in a Chicago public park.

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

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

This urban drawbridge gained eternal pop culture fame when the Blues Brothers jumped it while it was raised.

These mansions date back to Chicago's days as a brewer's paradise.

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

Former bath house turns gastropub.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

One-of-a-kind preserved ruins of an abandoned 1880s church in Chicago's Pilsen neighborhood.

Where old school Polish Chicago and young hipster Chicago live side by side.

The 606 is a decade in the making.

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

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

Cemetery featuring rare glass-fronted columbarium.

A display of magnificent stained glass windows is the first exhibit of its kind.

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

All of Chicago's wood-paved streets are long gone but two alleys remain.

An antiquated German apothecary on Chicago's North Side.

A Bibliophile's Dream.

For a time this small Florida town of less than 1,000 residents was the national leader in dismemberment.