Hafþór Júlíus Björnsson, 6’9”
The 6’9″ tall Hafþór Júlíus Björnsson (also known as Thor) is the only man to have won the Arnold Strongman Classic, the title of Europe’s Strongest Man and World’s Strongest Man all in the same year. He’s most famous, though, for playing The Mountain in “Game of Thrones.”