Westeros (which can be seen in the opening credits above) is the home to a large proportion of the action in both the books and the TV series, with many of the main characters at least starting their plots here, although moving across the sea once their storylines progressed.īelieved to be the most westerly part of the known Game of Thrones world, Westeros, according to Martin, is around the same size as South America and consists of many separate kingdoms.