Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Bouncing, delightful, mechanical art at the MIT Museum.

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

A school used as a model for public education across the country.

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

Narrowest house in Boston.

A luxury hotel constructed out of a former jail.

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

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

The infamous Boston Mob ran rackets from an office here in the 1970s.

Former home of an abolitionist couple who escaped slavery and established the most active Underground Railroad stop in Boston.

A memorial dedicated to victims of the Irish Potato Famine who perished while quarantined on this island.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

Malcolm X's house during his most formative years faces an uncertain future.

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

One of the few remaining monuments dedicated to South Boston's Irish heritage.

The oldest playground in America.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

This statue intended for children to enjoy became a minor political spat.

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

A small plaque promises cold, hard cash in exchange for work by the famous pop artist.

This Massachusetts home was the first to have a telephone line and its own phone number: 1.