L.A. Weekly's the 20 Greatest Metal Albums in History

If you count Black Sabbath's 1970 release of their self-titled debut as the birth of heavy metal, the genre is now over 40. It can no longer be called a fad. Hell, it can have adult children, and it can run for president. (Insert "presidental metal of freedom" joke here.) So, yeah, it's old. But it continues to evolve, and the bands and albums that paved the way still feel as important and vital in 2013 as they did upon first impact. Here, then, are our picks for the 20 greatest metal albums, as chosen by the Weekly's metal writers.