Rainy Washington, DC days, such as today and tomorrow, offer visitors an excellent opportunity to take advantage of the many museums along the National Mall. If you have young children, I highly recommend the Air & Space Museum or the National Museum of Natural History. Both have exhibits that will fascinate the kids. From ant farms to ocean wonders to the Spirit of St. Louis and space exploration, the two museums will turn a rainy day into an adventure. If you are sans kids, I would hit the National Gallery of Art and spend the day surrounded by the beautiful creations of Degas, Monet, Renoir. Check the NGA calendar and listen to a lecture before having tea or coffee at their garden cafe. Or walk down to the National Museum of American History and get your fill of American culture.