A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A bit of retro transportation flair preserved in the world's largest department store.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

The Boston square dedicated to the dark poet who was born nearby.

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

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

"A hideous albatross in the Hudson River Valley."

How did the right arm of a 13th-century English bishop wind up in a Connecticut church?

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

The world's largest piece of copyrighted artwork.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Memorial to a beloved puppeteer as well as all street performers.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

Impossibly life-like natural history models created out of glass by a father and son.

Three prestigious academic collections come together to create a world-class natural history museum.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

Dim sum, served in a grand old theater.

A men’s restroom became a sandwich shop.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Located in Faneuil Hall, the headquarters of the Ancient and Honorable Artillery Company of Massachusetts has stood the test of time.