Four hours from New York by bus, Washington DC is a very interesting city to visit for a lot of reasons. It is of course the seat of the federal government of the United States, but it is also a very rich city culturally and architecturally. What I prefered in this city was certainly the museums, specially the modern Art museum and the Philips collection. The architecture of the National Galery of Art by Ieoh Ming Pei (the architect of the Glass pyramid of Le Louvre) offers interestings volumes for photography.