@BoingBoing @epredator they have a similar one at the Escher Museum on The Hague. I didn't figured it until the end as well.
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@sla_shalafi@BoingBoing I have the urge to 3d print one :)
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Nice; thanks. “
@BoingBoing: I couldn't figure out this optical illusion painting until the very end http://boingboing.net/2014/07/03/i-couldnt-figure-out-this-op.html …”Thanks. Twitter will use this to make your timeline better. UndoUndo
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