Commemorating the spot where the famous scientist fed his pigeons.

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

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

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

The home of the first American-born saint is one of the only curved buildings in New York.

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

There must be a pun in this haystack somewhere...

Elevated freight railway turned wildly successful urban park.

The first piece of public art dedicated to LGBT rights.

New York City's smallest piece of private property.

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

Visit the site of a subway powered by nothing more than air--and lots of it.

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 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.

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

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

Currently housing a corporate bank branch this building at the southern tip of Manhattan was once the gateway to luxury vacationing.

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

The "Seinfeld" diner.

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

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.