For a quick comparison of layouts of all 53 Main Pages have a look at http://eza.gemm.nl/Wikipedia/Gallery/Gallery.htm
Complete pages are shown, captured at a virtual 1000*3000 screen resolution, reduced to 40% size. At 40% reduction the text is hardly readable, but it gives a nice comparison of overall layout per wikipedia.
Erik Zachte
This job was easy thanks to url2bmp (Windows freeware) http://www.pixel-technology.com/freeware/url2bmp/ despite its name it handles other image formats as well, can be run in batch mode