A unique columnar residence built in the 19th century.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

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

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

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

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

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.

The self-proclaimed world's smallest museum, located next to a Massachusetts sandwich chain.

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

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

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

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

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

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

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

A historic bridge with a lovely acoustic anomaly.

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

Friction between grains of sand cause a curious "singing" sound.

Museum dedicated to awful artwork.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

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