This Pennsylvania structure, the oldest building in Gettysburg, was once a stop on the Underground Railroad.

The site of the daring river crossing that changed the course of the American Revolution.

Museum dedicated to the art of cutting and polishing stones.

Julia Buccola Petta's body was peculiarly well-preserved when it was exhumed six years after her death.

In a cemetery full of holy men, mobsters, and haunted graves, among the most remarkable graves an ordinary husband and wife's spinning headstone.

Burial site of the notorious Chicago gangster.

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

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

A source of civic pride, though the reason for its construction is unknown.

The last remaining vestige of a popular 1999 public art display.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

The 30,000-volume library is one of the world's most impressive poetry collections.

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

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

Chicago’s last original drive-in restaurant is a family-run hot dog joint that started in 1948.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

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

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

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

Illegal drag racing two stories beneath Chicago’s streets.