This is a really cool, really creepy picture I took just the other day and it happened almost completely by accident. My girlfriend and I went out for a walk and she wanted her picture taken in front of this nice arching doorway. It was a beautiful day with clear skies so I had my polarizing filter on to help reduce glare but the shot, however, was directly into the sun so I took a few pictures before she posed to see how the pictures would turn out. There was a large amount of glare from the sunlight and I was not pleased with the results. When I got home and looked at the pictures on my computer however, I immediately saw the potential this image had. I converted it to black and white and added some grain to make it look old and voila!
Thankfully I hadn’t deleted the picture after initially dismissing it. I guess the lesson here is not to review your pictures in the field, and certainly never delete them if you aren’t happy with them on your camera’s display screen because you may be missing some details that you can only notice on a larger screen. Allowing some time to pass before taking a second look also allows you to see the image with different and more objective perspective.