*Metro train, Washington, DC:* Guy Flâneur (www.flickr.com/photos/flaneur) lives in the DC area and takes advantage of his commute to photograph Union Station and the Metro. “I was looking for the hint of the arriving train with a real sense of one passing by.” Canon EOS 5D with 24–70mm f/2.8L Canon EF lens, supported on a bench. Exposure, 5 sec at f/7.1, ISO 125. Guy Flâneur