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.

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

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

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

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Ride the subways of yesteryear.

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

A semi-scholarly approach to sex.

Elevated freight railway turned wildly successful urban park.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Captain America, Sub-Mariner, and the Human Torch were all born in this art deco Manhattan masterpiece.

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

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

A forgotten relic from New York's bygone trolley system hides in plain sight under a bridge.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

The crown jewel of the Queens Museum is a nearly 10,000-square-foot architectural model of the city originally built for the 1964 World's Fair.

This mysterious marker puzzles pedestrians and infuriates geographers.

Thriving meadows span a rooftop in one of Brooklyn's most heavily industrialized neighborhoods.

A modern addition to the Greenpoint skyline.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.