The back of a highway sign on Interstate 280, looking up from the Mariposa Street bridge above the tracks, San Francisco.

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. White balance, exposure, contrast, saturation, levels, highlights, shadows, and color adjustments in Aperture.