For a quick comparison of layouts of all 53 Main Pages have a look at
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.
This job was easy thanks to url2bmp (Windows freeware)
despite its name it handles other image formats as well,
can be run in batch mode