Firstable, I didn't find a good video about that and I'm a little bit lazy right now.
Do you remember warcraft III undead's campaing? Do you remember Uther last words?
(No links for me so: YOUTUBE: Let's Play Warcraft 3: Part 44 Minute 2:38 or so
And now, that's the question itself. Arthas said he was going to live forever but he was wrong... If he were going to be in a different place of hell... Which way should it looks?