During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

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

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.

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

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

You must take the A train... to the last active cemetery in Manhattan.

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

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."

A museum collection honoring the long history of the FDNY is held in a disused Manhattan fire house.

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

The highest point on the island known for buildings that touch the sky.

The 28-foot granite map plots the locations of 40 theaters in New York City.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

The most confusing clock in New York.

The notorious headquarters of a corrupt political machine.

This historic building housed the surviving crew members of the Titanic, who were left destitute after the wreck.

The site of the deadly Triangle Shirtwaist Factory Fire.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

Rummage through this sunken ship, but leave your scuba gear at home.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Holding the most bodies of any cemetery in the United States.

Relics given to a Manhattan church to avoid seizure by the Italian government.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.