In these decades of freely accessible online maps, it's totally normal to be addicted to what Wikipedia describes as a "symbolic depiction highlighting relationships between elements of some space, such as objects, regions, and themes"(best Wikipedia definition ever?). And when you are in love with maps, you want them on your wall, don't you?
The vibrant yet minimalistic posters created by Rae Nordico are based upon the OpenStreetMap project, and they're the cure to your map withdrawal symptoms. 444 unique versions of 148 cities on 5 continents should be enough to please your eyes and bring some excellent wall decor to your home. These are my favorite ones: