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Mondvergleich/wikimedia commons
http://en.wikipedia.org/wiki/File:Mon...
Ponzo illusion/wikimedia commons
http://en.wikipedia.org/wiki/File:Pon...
Same color illusion proof2/wikimedia commons
http://en.wikipedia.org/wiki/File:Sam...
Giraffe/Vaughan Leiberum
http://www.flickr.com/photos/laertes_...
Eifle Tower in the neighbourhood/Darren Inouye
http://www.flickr.com/photos/inouye/6...
Music:
/ instrumentalrnbproducedbysokarfree
Film Footage courtesy of Shutterstock, Inc., Used by Permission