Game of Thrones or A Song of Ice and Fire represent very detailed and expansive worlds that even the most dedicated followers might have trouble keeping up with. Though appreciating that world might be much easier once you have access to maps that show the geography very well. Maps of Westeros by J.E. Fullerton (previously) are well detailed, illustrated to show off the different regions, and made with such simplicity, they could have come from MS Paint.
Via Geek-Art