Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

The humble fort that saved Washington.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

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

Oldest surviving example of a Dutch saltbox frame house in America.

A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

Amid the marketing blitz of modern Times Square is an elegant holdover from its showbiz glory days.

The oldest Dutch colonial stone house in New York City is a hidden gem on the border of Brooklyn and Queens.

There are owls with glowing eyes in Herald Square.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.