So why stereo when there are three of them? Well a friend of mine, *aegiandyad, pointed out to me that some of my images are actually also autostereograms - So for this image for example, if you slightly cross your eyes until you see four spires instead of three, then focus on the middle two, they will become 3d and pop right off the page!! This is purely coincidental since I didn't do this deliberately, but pretty neat - I hope some of you can see the effect!