I saw this ruined metallic structure every day in my way to the office. By the way, someone asked me if this is an HDR image. Certainly it is not, but I think it seems to be. What I could tell you about this image is that after shooting I adjusted the EV watching the histogram to avoid any clipping, mainly highlight clipping that I think is the most annoyed. Then, I adjust the tonal range of the image by means of PP. You can see the original image before PP at "http://forums.dpreview.com/forums/read.asp?forum=1009&message=26753947"