http://www.flickr.com/photos/87404655@N00/51849398/
I’m interested in this picture because it takes me quite long time to know what this image presents. I think it was taken by camera (but I do not know what effects it is used) and presents the crowded of city at night (the mass of light rays are the mass of cars). This picture is fine because it makes people have to see deeply and thinks clearly to understand the image.