An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

This landmark building is now a vibrant performing arts space with musical acts from around the world.

A famous songsmith's custom piano, dubbed "High Society," is hidden just out of sight in one of New York's finest hotels.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

This former water source for the City of Brooklyn is now a thriving natural wetland.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

This abandoned subway station can still be seen on regular commuter trips.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

New York's southernmost subway station is whimsically wavy.

After traveling the world, one of the last remaining fully-rigged three masted iron-hulled cargo ship in the world found its home in New York.

One of the last Jazz Age "Wonder Theaters" in New York City.

This seemingly unremarkable boulder is said to bear the hoofprint of the devil himself.

Historical figures from New York City's Catholic community reside in Midtown.

Become a prohibition rebel.

New York City's only radical feminist independent bookstore.

One of the city’s oldest watering holes was originally the home of a famous James Brown (not that one).

Filled with history, this cemetery is maintained each summer by a few hungry goats.

A simple plaque remembers an act of WWI terrorism that obliterated an island and forever scarred the Statue of Liberty.

Known as the "Grand Lady of Jersey City,” the city's first racially-integrated hotel was owned by a preacher who was, depending on who you ask, a cult leader, civil rights pioneer, or the manifestation of God.

This haunting monument honors the victims of 9/11.

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

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.