This pavement line and accompanying statue commemorates the starting point for the world's oldest annual marathon.

The actor best known for slapstick comedy is memorialized in his home town.

This university transit system is a 1970's vision of the future.

Once the largest gravity dam in the world.

This old mill and former police station now present a world-class collection of Orthodox iconography.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.

The biggest apple in all of New England stands 10 feet tall and weighs over 1,000 pounds.

This museum shines a light on the true Pilgrim experience in North America.

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

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

A lush green oasis in the middle of Chicago.

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

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

To find the "unicorns of the deep" you've got to go downstairs.

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

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

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

P-town goes wild for the malassadas at this 87-year-old institution.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

Stolen goods adorn the organ at Old North Church.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Dedicated to one of the darkest moments in Irish history.

A men’s restroom became a sandwich shop.