3 mentions in Fun free things to do in D.C.?
Tiffany W. said, "...A short tour inside is also free.Tomb of the Unknowns - Watch the changing of the guard.US Marine Corps War Memorial United States National Arboretum National Zoological ParkRock Creek Park NEIGHBORHOODS: Georgetown (Washington DC) - Stroll through the town, window shop, stop in for..." See More
peggy r. said, "...or on the cement seats surrounding the enormous fountain. You won't believe you are still in DC when you visit the United States National Arboretum, 446 acres in the middle of the city. It's a quick cab ride there and a beautiful place..." See More
Jim S. said, "...Natural History, National Air and Space Museum. Hiking on C&O canal starts in Georgetown (Washington DC); can also rent bikes there; United States National Arboretum in DC accessible by bike; more serious hiking will require a car for initial access to surrounding national forests..." See More
1 mention in What must I see in D.C. that is off the beaten path?
1 mention in Day trips from D.C.
1 mention in Good museums and other free places in DC?