Death metal is loud and ugly. And I love it. There are no heavier, uglier, more brutal bands out there than Nile. They sing about nothing but ancient Egyptian history and their album art displays their chosen theme. And if you listen closely enough, you might learn a thing or two about history.
Or you could, you know, read a book about it. It would probably be faster. I love Nile and frontman Karl Sanders, but even after all these years, I can hardly understand him.