Prison Ship Martyrs Monument is America's 'original' tomb of unknown war heroes

The Prison Ship Martyrs Monument offers chilling testimony that American independence was purchased by patriots at the price of hideous human suffering. 

The 150-foot-tall Doric column at Fort Greene Park in Brooklyn, New York, towers over the footprint of a colonial garrison of the American Revolution. 

It’s dedicated to the estimated 11,500 American soldiers, sailors and privateers who died in hellish conditions aboard British prison ships on the East River during the American Revolution.