The world's shortest man, Chandra Bahadur Dangi, greets the tallest living man, Sultan Kosen, to mark the Guinness World Records Day in London Nov. 13, 2014. Kosen, measuring more than 8 feet tall, towers over Dangi who is only 1.8 feet tall. The Guinness World Records celebrates its 60th edition of the annual records book this year.