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

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A dilapidated dock tells the story of Titanic's missed arrival.

New York City's smallest piece of private property.

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

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

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

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

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

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

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

The oldest living tree in Manhattan comes shrouded in sinister legend.

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

Unrepaired walls from a 1920 anarchist bomb attack.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Salute the leader of the proletariat.

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

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

Possible relics of the ancient Roman city are hidden in this restaurant's façade.

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

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.