Hafthór Björnsson doesn't just play a strong man on TV.
The man known as "The Mountain" on HBO's Game of Thrones also takes part in World's Strongest Man competitions.
Recently, Björnsson recreated a feat from an ancient Viking legend and carried a log weighing 1,433 pounds for five steps during the World’s Strongest Viking competition. According to IronMind.com, Björnsson broke a 1,000-year-old record.
- Josh Sanchez