"Friendly tag-based Javascript animators" JADSDS have made a gigantic HMTL5 map of the overworld from The Legend of Zelda: A Link to the Past, also known as the best Zelda.
This from Dorkly. We've mentioned the Maurader's Map from Harry Potter before. As clever as this comic is, it's hardly the only feature in the Harry Potter universe which could have cut short various plotlines.