Pull up a seat and look real close because these optical
illusions will have you wondering for hours. Choose one of
the small thumbnail images on the left to see how confused
(or not) your will be.
What are "illusions"? Illusions trick us into perceiving something differently than it actually exists, so what we see does not correspond to physical reality. Hence, the word illusion comes from the Latin verb illudere meaning, "to mock." In addition, some illusions show us one thing in a picture, while someone else sees something entirely different in the same picture.