Up or Down? Source: IndoorPilot What am I looking at? This stair is obviously going down. The sunshine and shadows are great clues, but it would also be impossible for the bottom cat to sleep like this if it was going up. More optical illusions:Grumpy treeGravity hillsPainting of the OceanBoiling a birdSkullThe InvasionHidden ad in advertisement pageShadow cat
