The United States Navy Memorial is a memorial in Washington, D.C. honoring those who have served or are currently serving in the Navy, Marine Corps, Coast Guard, and the Merchant Marine. It lies on Pennsylvania Avenue NW between 7th Street Northwest and 9th Street Northwest, adjacent to the Archives station of the Washington Metro and the National Archives building. The National Park Service, through its National Mall and Memorial Parks administrative unit, provides technical and maintenance assistance to the foundation. The plaza is part of Pennsylvania Avenue National Historic Site.