Free Day in Washington, D.C.
I posted this in KT before I saw this forum. I will have a free Saturday in Washington D.C. later this month. I've seen most of the obvious sights, but I am open to suggestions about what I should see or do, as long as it is on the subway line. I will be kid and husband free, so I can visit all the antique stores I want, but I also love museums, so I will check to see if the Smithsonian has any special exhibits going. Suggestions, anyone???