Morris-Jumel Mansion: The Morris-Jumel Mansion is the oldest house in Manhattan and was the headquarters to General Washington in September and October of 1776. After Washington left the Mansion it was a host for many British and Hessian military leaders. The Mansion is located at 65 Jumel Terrace, New York, NY and you can still visit and and get a tour of the mansion. To learn more visit: http://www.morrisjumel.org