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."

Beautiful steampunk ghosts of early Massachusetts.

Radical Bookstore and Community Space.

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

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

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

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

One man's psychedelic fence is painted with his cacophonous folk art musings on the world.

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

Bouncing, delightful, mechanical art at the MIT Museum.

This is the house that spite built.

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.

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

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

Scores of wax baby figurines add an unusual mood to this beautiful church on the Greek coast.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

This open air archeological site houses almost as much wildlife as it does classical religious artifacts.

Cave on extinct volcano, once home to famous mathematician Pythagoras.

The location of the pie company that gave a classic toy its name is now a parking lot.

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

After over 100 years out of service this landmark windmill once again turns as a symbol of Jerusalem's self-sufficiency.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.