Rail joint, near Sunnyvale Avenue, Sunnyvale, California. Fortunately, this was on a piece of abandoned spur track. I shudder to think what going over this on a train would feel like.
Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 70mm, ISO 400, f/9, shutter 1/200 sec. Exposure, contrast, saturation, levels, and highlights adjustments in Aperture.