Good people, gather round, have a gander at this:
http://www.math.uh.edu/~tomforde/images/SchoolOfAthens.jpg
(The figure 6th in from the right on the top row)

Then have a gander at this:

http://images.uulyrics.com/cover/g/guns-n-roses/album-use-your-illusion-ii.jpg

Same image right? If this is all common knowledge, then feel free to slag, but I only noticed this last night.