When Game of Thrones fans think of Icelandic actor Hafthór Júlíus Björnsson, they think of the character he plays on the show—​The Mountain. He is a huge, hulking hired assassin who (spoiler alert) smashes in people's faces without mercy. Usually when you see The Mountain he is, you know, doing normal Mountain stuff. Like beating people up until they die:

When Björnsson is not on the show, he can be seen doing other machismo activities like lifting many, many weights at once:

Sources: Mashable