In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Ride the subways of yesteryear.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Red frames showcase remnants of one of New York's original subway stations.

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

A museum collection honoring the long history of the FDNY is held in a disused Manhattan fire house.

A bit of retro transportation flair preserved in the world's largest department store.

The most confusing clock in New York.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

The site of the deadly Triangle Shirtwaist Factory Fire.

Ever wanted the laymen's version of your credit card fine print?

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Commemorating the spot where the famous scientist fed his pigeons.

Unrepaired walls from a 1920 anarchist bomb attack.

An artist's cute bronze subway sculptures belie his violent artistic past.

Lie in a hammock where George Washington stood.

Cryptic messages embedded in the New York City sidewalk.

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

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

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