Take the tour at Arlington National Cemetery, see the changing of the guard at the Tomb of the Unknown Soldier. Hit the museums around the National Mall -- but remember plebes usually go to the Holocaust Museum during the summer. The National Zoo and National Cathedral are fine places. My favorites: Arlington, Jefferson and Lincoln Memorials, National Air & Space Museum, Natural History Museum
CaptMJ,
Thanks for the suggestions. We appreciate your faithful postings that help us newbies navigate in the dark.