Check out the underground party scene at the "Burning Man of Brooklyn."

Lie in a hammock where George Washington stood.

Once America's longest-manned military fort, now an abandoned hulk.

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.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

A legendary speakeasy bookstore returns from the brink.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

Unique antiquarian shop specializing in globes, maps, and prints.

Detailed facade of a brownstone in Boerum Hill.

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

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

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

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

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

Brooklyn's Barkaloo Cemetery is the resting place of a scant two bodies.

Revolutionary War casualties fill the only 17th century structure remaining in Manhattan.

Rat sculptures try to infiltrate the Graybar Building in an architectural tribute to New York City's nautical history.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

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

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

This collection of grinning ephemera has grown from basement to Brooklyn.

The last slot car racing arcade in Brooklyn is keeping the dream of speedy little autos alive.

This former Norwegian sailor's church is slowly being taken over by ramshackle robot musicians.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.