This great photo by Dennis Hodges gives an illusionary look at the buildings of Manhattan. It takes a short while to get your head around the perspective but eventually it can be seen correctly.
I'm not sure what is going on here. If click onit and make it larger I can see moving lines and changing colors. How about you? Source unknown
A detail from William Kentridge's "Rebus" sculpture series. When viewed from another angle, the nude reveals the image of both a stamp and telephone.
Is this an apple tree or an orange tree. The only way to find out is to stare at the red dot for thirty seconds and then look at a white wall or ceiling and maybe keep blinking.
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