I was reading a late 19th century account of an old historian who told of places in NYC that still bore physical evidence of the Revolutionary War. He spoke of an old house where a British Cavalry Officer rode in during the 1776 Battle for NY. The hoof marks of this horse were still visible in the wooden floor toward the turn of the 20th century. I reserched this place but it appears, as with most 18th century and older places, it no longer exists. I did manage to discover one location that the 19th century historian described that is still exactly where he said it would be. It is the grave stone of one of Washington's men who fought in the Battle for NY and the Battle of Trenton. It is still standing in the small church courtyard in the Bronx.
It is sad that so many places of historical importance have been needlessly destroyed with so few remaining.