The picture shows two identical images of the Leaning Tower of Pisa. And yet the tower on the right seems to lean more. How does this illusion work????????It seems that the brain treats the two pictures as if they were part of a single scene. Normally, if you have two towers next to each other, they seem to converge as you look up, due to perspective. Now the two pictures of the leaning Tower of Pisa are identical. Yet one has the impression that the tower on the right leans more, as if photographed from a different angle. The reason for this is because the visual system treats the two images as if part of a single scene.
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