I think Washington D.C. has one of the most attractive metro systems in the Unites States. Not only are the trains kept clean, the stations themselves seem well designed and attractive. This photograph is of the Clarendon Metro station. The view down the hall is unobstructed so you can get a good feel for the architecture of the place. One thing I just realized after uploading this photo was that I shot this at 1/10 second shutter hand held. I'm surprised it came out crisp at all considering how shakey my hands can be.