Statue commemorating the use of ether in anesthesia.

This impressive Boston holy house is the American mecca for Christian scientists.

An enormous, inside-out glass globe built in 1935.

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

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 indelible moments of the American Revolution took place at this location.

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

Narrowest house in Boston.

Historic Hull Street was actually the first street with a proper name in the Boston area.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

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

One of the last remaining movie theatres in the country that features a rear-projection system.

This plaque is dedicated to one-half of the Magliozzi brothers and their hit radio show, 'Car Talk.'

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

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

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

Hundreds of antique bank vault locks on display in New York City.

Come for the waffles, stay for more waffles.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

New York's oldest and possibly grandest keeper of books.

This lavish room in a New York City mansion is a rare relic from the end of the Gilded Age.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.