I'm on the verge of finishing Moby-Dick
Life of Pi by Canadian author Yann Martel. Its supposed to go into a lot of spiritual insight, but thus far I've just been learning about sloths: i.e. i love it so far
Also been delving into some Kepler recently for uni (Epitome of Copernican Astronomy & Harmonies of the World) though I don't think that counts, despite how intriguing it is! I suppose it's not the kind of thing you'd normally find yourself reading..
http://burzum.org/eng/biography.shtml
the burzum story, god that took me a while to read, just got done. very interesting bio though