Move your head closer and further away.
Attribution: Used with permission - Copyright © Akiyoshi Kitaoka - www.ritsumei.ac.jp/~akitaoka
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Are squares A and B the same colour?
Is this a duck or a rabbit?
Can you tell what this is a picture of?
Which way is the dancer spinning?
Can you find his three daughters as well?
Who is missing?
Is the water flowing uphill in this impossible waterfall?
An amazing demonstration of your blind spot.
Are the eyes the same colour?
A colourful butterfly?
Are the horizontal lines parallel?
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