Smithsonian National Air and Space Museum [Washington, D.C.] - The premiere aviation and space museum in the United States. The Smithsonian Air and Space Museum houses an extensive collection of aircraft, spacecraft, and artifacts.
Marine Corps War Memorial [Washington, D.C.] - Memorial dedicated to all Marines who gave their lives in the defense of the U.S.
United States Holocaust Memorial Museum [Washington, D.C.] - The U.S. Holocaust Memorial Museum is the national institution for the documentation, study, and interpretation of Holocaust history, and serves as a memorial to the victims of the Holocaust.