But eyes alone are not capable enough.
To see ‘right’ one has to think first about what is actually going on in front of his naked eyes!
And you should also take into consideration that all the tricks shown below have been purposefully put together by people who command intimate knowledge about how our brains work.
http://www.smash.com/10-amazing-perspective-tricks-will-mess-mind/
nicichiarasa 
Another interesting clip about how our brains can be fooled by those who have intimate knowledge about these kind of things:
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Are we this sheeple?
The worst part of all this is that some of those who have learned about how our brains work don’t refrain themselves to performing ‘amusing tricks’ like this one…
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