The picture, made up of black and grey lines, makes it almost impossible to work out - and what's more humiliating, is that this optical illusion is designed for children by Optics4Kids.
Optical illusions are mind-bending images that challenge our perception and visual skills. These illusions provide deep insights into how our brain processes this complex visual information.
Located at the top of the heavily (tourist) trafficked Royal Mile, Camera Obscura is filled with enough colorful puzzles, games and optical illusions to keep the kids (and adults) entertained for ...