The oldest house in Manhattan is now a museum that remembers the home's sordid history of scandals, vice-presidents, and ghosts.

New York City's only preserved family home from the 19th century.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

Mysterious 500-year-old tapestries depict a unicorn hunt.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

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

The world's largest piece of copyrighted artwork.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

The infamous Boston Mob ran rackets from an office here in the 1970s.

This historic Boston building has gone from personal estate to porn theater and back again.

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

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

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

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

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

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.