Game of Thrones' central continent of Westeros is a fascinatingly varied landscape. It experiences every climate, from sweltering desert to freezing tundra. Some regions oppose human settlement, from the sinking swamps in the Neck to the tumultuous Stormlands. No part of Westeros is more hostile than the North, choked with creatures so dangerous that the rest of the continent erected a towering Wall to keep them out. The Night's Watch once employed a massive army to man that Wall, but their numbers have plummeted.