A solemn shrine for some of the lesser-known casualties of the Revolutionary War, this massive Doric column marks the remains of over 11,500 American soldiers who died on British prison ships. Many were held at the docks of the nearby Navy Yard when room ran out on land, and. Despite the morbid function and sentiment, it’s a serene and peaceful spot in tree-filled Fort Greene Park, on a high hill that offers an unexpected view over Brooklyn. It’s an occasional protest site as well – In April 2015, a bust of Edward Snowden was erected here (and quickly removed).