ShackNews discovered a pretty sweet tweak for Skyrim that enables you to zoom all the way down to street level from the in-game world map! The changes you need to make to your Skyrim.ini file can be found at Skyrim Nexus.
According to the map notes, players will see their surrounding area in high detail, because the game has preloaded that section. Other areas will appear in lower quality. The map also does not work indoors or in towns, something the creator is attempting to fix.