8. Metallica: Master Of Puppets

No list on albums is ever complete without a Metallica reference, and that's not to say it's being done here just for the sake of it. Some of their covers are great in their own unique ways. This one neither has mythical characters nor does it depict any kind of gory violence. Yet it's one of the most powerful and thought provoking pieces of artwork, aptly done for what turned out to be one of the heaviest albums in metal.