PM Hummingbird Source/credit: xenmate What am I looking at? David Cameron is standing on one leg, as is the man right next to him. But why is he flapping his hands is not sure… More optical illusions:180 degreesBicycle wheels on a truckHigh-rise buidingsLap TigerOminous birdDog jumping over ManhattanHeavy Metal ConcertWorld's Worst Carpet
