Broc Brown is an astonishing 7 feet and 8 inches tall. He was the world's tallest teenager before turning 19 but now is too old to qualify for the category. His Family says that he cannot stop growing, they believe that if he continues to get taller he may beat the current world's tallest man, Sultan Kosen, who is 8 feet, 2 inches. Broc suffers from Soto Syndrome which causes him to be very tall. Doctors never thought he'd live to be a teen but now they believe he can have a full adult life.