At the present in Game of Thrones it's understood to exist to protect the realm against the Wildlings. But it was originally created to protect them against the White Walkers.
To keep out the "barbarians", rather like Hadrian's Wall in Britain.
Keep out the beasts and the barbarians that live in the far north.
To keep out the "barbarians", rather like Hadrian's Wall in Britain.
Why do people go to the wall? What's the purpose?
