Northbound Caltrain crossing the San Francisquito Creek bridge between Palo Alto and Menlo Park, Calfornia.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 18mm, ISO 400, f/4.5, shutter 1/125 sec. Exposure, contrast, saturation, and highlights adjustments in Aperture.