Sultan Kosen, a former basketball player from Turkey, has been acknowledged as the world’s tallest man, by the Guinness Book of Records.26-year-old Kosen is 2 meters 46.5 cm tall and he also holds the record for the world’s biggest hands (27.5 cm) and the world’s biggest feet (36.5 cm). He grew as a normal child until he turned 10then, due to a dysfunctional pituitary gland, his body developed at an accelerated rate.