People take part in the elaboration of a giant Mexican traditional sandwich named "Torta" during the "Torta Fair" in Mexico City, capital of Mexico, July 26, 2017. According to local press, during the event which is held from July 26 to 30, people made a "torta" of 67 meters long and 820 kilograms in weight, trying to break the world record of the largest torta. (Xinhua/Francisco Canedo)