• Square or rectangles ?

    Square or rectangles ?
    Do you see some squares or rectangles? This is really nothing more than a bunch of lines going in every direction, but the way our mind interprets these lines is totally different.
  • Rotating or Not ?

    Rotating or Not ?
    Is this rotationg or not? It is really not known.
  • Flowing water ?

    Flowing water ?
    Does this water raeches anywhere? Or it keeps moving? Is it really possible?
  • Inside out!

    Inside out!
    Is there something strange about this building?
    Hint: Look at the pillars in the middle floor.
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