For airplanes it is College Park, MD (presently an airport that is barely accessable by air) - great museum there...I'm in the middle of Orville Wright's book right now & there are some very early photos of Orville Wright flying at Templehoff in 1909 which may prece the Wrights' move from Ft. Meyer's, VA to College Park, MD. Photos of Wright flying at Pau, France are definitely before College Park, MD - anyone know if that airport is still active.