Grilled cheese. Ham and cheese. Meatball sub. Turkey club. Sandwiches are an essential part of America's lunchtime, and the ingredients shoved between two slices of bread can be as varied as one’s imagination. But sandwiches aren’t exclusive to the U.S. They continue across the globe with the Chilean barros luco, or a beef steak and melted cheese sandwich; the French croque monsieur, made with ham and cheese; and the Chinese donkey burger, which is relatively self-explanatory. Here are 12 iconic sandwiches from around the world.