Burger King is promoting the fact that its Whoppers are now made with no artificial preservatives in a way that breaks many advertising rules. The campaign, which includes a film and out-of-home visuals, shows what happens to a Whopper when it's left out for over a month: it becomes The Moldy Whopper. While you wouldn't want to eat a Whopper after the mold sets in, there's something beautiful about the absence of artificial preservatives.