A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Martha's Vineyard's most beloved speakeasy sells late-night pastries.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This supermarket is suspended 25 feet above an interstate highway.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

The 100-year-old public collection of a New Hampshire dentist that contains taxidermy, Native American artifacts, and a pair of mummy hands.

The site of Paul Revere's historic two lantern warning.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A stellar example of Art & Crafts architecture, and a movie set to boot.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

This mural celebrates the early integration of a New Hampshire baseball team.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The world's largest piece of copyrighted artwork.

Stolen goods adorn the organ at Old North Church.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.