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

This nearly 200-year-old restaurant's history includes an exiled French prince, JFK, and a very hungry Daniel Webster.

A mysterious stone embedded at the base of a historic Boston building.

Narrowest house in Boston.

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

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The massive machine creates cracking displays of indoor lightning.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

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

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

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 is the house that spite built.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The classic Christmas carol was written at this Massachusetts tavern in 1850.

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

A quiet memorial marks the spot where the victims of the Salem Witch Trials were executed.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

Museum dedicated to awful artwork.

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

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

Welcome sign announcing Haverhill, MA, as the birthplace of horror rocker/artist/director Rob Zombie.