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

The world's largest piece of copyrighted artwork.

This classic red schoolhouse is said to have been where Mary and her little lamb went to school.

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

The Burnside Fountain and its questionable interpretation.

The massive machine creates cracking displays of indoor lightning.

Statue commemorating the use of ether in anesthesia.

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

A former waterfront market is now in the center of town due to some interesting Boston engineering.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

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

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

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

Ice cream stand, snack bar, and time capsule of milk conveyance.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Shelves covered in dozens of coffee bean varieties fill this North End institution.

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

This is the house that spite built.

An alley way dedicated to graffiti and street art is a constantly changing street gallery.

This landmark cemetery in Boston was created more than 300 years ago.

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

Narrowest house in Boston.

"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."

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