On a recent trip to the UK, I took this picture at a festival at the Docklands. This little train really is engine-driven, and even puffs steam out of the smokestack. People were taking rides back and forth on a 100-foot length of track.
Brian, Frans, note the lower left and right corners of the image. If you zoom in, you'll see my credits, interpolated as watermark text. This is yet another way images may be signed, without upstaging the image subject(s).
Cheers,
Matthew