Sultan Kosen, 31 years old, is from Turkey and is the worlds tallest living man. He measures 8' 9".
On the contrary, Chandra Dangi, 74 years old, is from Nepal and it's the world's shortest living man. He measures a mere 21.5".
The two finally met in London on November 14, 2014 for the tenth annual Guinness World Records Day. Here's a picture of them shaking hands.