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This is one of those optical illusions where you will probably find you have to do a double take before you notice any difference in what you are first looking at. So to start with, what do you see? On first glance this image appears to be the face of a roman soldier wearing a helmet and facing left, but if you look again you can also see it is an image of a man bending over while facing the wall and showing his behind.
that's so cool