Dizzying optical illusions by Akiyoshi Kitaoka – in pictures | Science | theguardian.com

http://www.theguardian.com/science/gallery/2014/aug/05/dizzying-optical-illusions-akiyoshi-kitaoka-pictures?CMP=twt_gu

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Enjoy Pooh quotes: A.A. Milne, Winnie-the-Pooh

"To the uneducated an A is just three sticks." 
― A.A. Milne, The World of Winnie-the-Pooh