The roof of a southbound Caltrain passenger car, looking down from the San Antonio Road overpass as the train pulls into the San Antonio station.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 70mm, ISO 400, f/8, shutter 1/640 sec. Exposure, contrast, saturation, levels, and highlights adjustments in Aperture.