The flavors of the craziest pizzas on Earth

15 - France: The tarte flambée, originally from the city of Alsace, is a pizza that joins two of the most delicious ingredients: bacon and cheese. The dough, which can be served square or round, is covered by a layer of crème fraîche. It is baked in the wood-fired oven and can be stuffed with cheese, mushrooms, onions and bacon. There are sweet versions with apple and cinnamon.