Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

Small island science organization offers public the chance to participate in research.

Stolen goods adorn the organ at Old North Church.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

Civil War Fort on an island in the Boston Harbor.

This picturesque abandoned home is rumored to be a spite house.

A men’s restroom became a sandwich shop.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

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

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

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

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

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.

This peaceful Massachusetts graveyard was one of the first "garden-style" cemeteries in America.

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

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