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

This semi-hidden Manhattan restaurant is based out of a loading dock.

Walk over a 150 year old manhole.

A hands-on traveling collection of the innovative devices of yesteryear.

A popular European tradition makes its way to the states on one of America's most famous bridges.

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

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

Unlock the secrets of the conjuring arts.

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

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

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

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

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

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

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

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.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

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

An unassuming secret door once led to a legendary watering hole.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

A legendary speakeasy bookstore returns from the brink.