This billboard started life as an image of a large hunk of meat. But it was eventually consumed by flames, revealing a rather clever advertisement for a Russian steakhouse. Because after letting the public scratch their heads for a few days, the image of the uncooked steak was eventually 'grilled' with a series of flaming wires.
Those were left to burn, leaving sear marks across its surface along with the name of the restaurant — Double Grill&Bar. Now if only burning paper and glue smelled as delicious as a grilled steak. [YouTube via Taxi]