Impossible Chairs Source/credit: Nicolas E. Scott-Samuel What am I looking at? These impossible chairs are really just a stack of 9 chairs leaning against a wall. A research paper was written on this real life illusion. More optical illusions:Floating cat headCat a logBeautiful CaterpillarSolar EclipseDock to the skyScale Model of a CourtyardFloor Color Creates Extra DimensionGiant Broccoli