Congrats to the Trapp Family from Duluth, Minnesota for being named the tallest family in the world. The Guinness Book of World Records' certified the Trapp Family with an average height of 6 feet, 8 inches tall. The son is the tallest at 7 feet 3 inches. The mom is the shortest at 6 feet, 3 inches tall. Our only question is would you rather date someone taller or shorter than you?