19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Statue commemorating the use of ether in anesthesia.

The bears may be gone, but their old cages can still be found.

The massive machine creates cracking displays of indoor lightning.

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

One of the now-less-hidden floral gems of the "Emerald Necklace."

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."

Bouncing, delightful, mechanical art at the MIT Museum.

Radical Bookstore and Community Space.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

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

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

This massive World War II calculator hearkens back to the days when "computer" was a job title.

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

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

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

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

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

A historic bridge with a lovely acoustic anomaly.

This supermarket is suspended 25 feet above an interstate highway.

A steampunk wonderland that preserves America's history of industrial innovation.

"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."

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