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

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

The oldest surviving synagogue in New York City is now a soaring art space.

A very classy 1920s-era bar right in Grand Central Station.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

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

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

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

Become a prohibition rebel.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

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

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

On the Hudson resides one of the largest clocks in the world.

A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Rummage through this sunken ship, but leave your scuba gear at home.

Elevated freight railway turned wildly successful urban park.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

The remains of a 19th century spring, and the site of an infamous unsolved murder.