Keywords: Aerial view of Federal Triangle - facing west.jpg Aerial view of Pennsylvania Avenue center right and the Federal Triangle center facing west towards Arlington County Virginia in Washington D C Visible landmarks include the National Archives Building center bottom Constitution Avenue center left the National Museum of Natural History left and the Washington Monument upper left among other sites located on the National Mall left highsm 04830 2006-09-20 Creator Carol M Highsmith Carol M Highsmith 2006 in Washington D C Aerial photographs of Washington D C Photographs by Carol M Highsmith Constitution Avenue Federal Triangle National Mall National Museum of Natural History United States Pennsylvania Avenue |