Narrowest house in Boston.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

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

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

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

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.

A men’s restroom became a sandwich shop.

Ride the subways of yesteryear.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A hands-on traveling collection of the innovative devices of yesteryear.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A natural gas leak provides a flickering flame beneath a waterfall.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

One of only two commuter aerial tramways in the United States.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

An abandoned castle owned and ignored by Masons carries a cursed history.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A semi-scholarly approach to sex.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Rotting dome home spotted near Chapel Hill, North Carolina.