Huge abstract sculptures of the Puerto Rican Flag.

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

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

A beloved Chicago music venue offering cold beer and lots of “Friendly."

These pretty kitties killed and ate as many as 135 railway workers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A hot dog stand where the heads are just as hot as the dogs.

Beloved bar home to musicians of all eras and reputations.

This historic hotel invented the chocolate brownie.

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

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

An antiquated German apothecary on Chicago's North Side.

A Bibliophile's Dream.

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

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Visit the monolithic tomb of America's most famous general.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

A living archive of urban activism and space reclaimed.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

The "Seinfeld" diner.