What's with the last image? Wasn't Icecrown Glacier hollow with the Frozen Throne on top of the internal spire prior to Arthas breaking the ice surrounding it with Frostmourne? As far as I know it has only been exposed like that between the ending of The Frozen Throne and right before Wrath of the Lich King when most of it became encased inside Icecrown Citadel.
c'mon.. nobody plays wow for lore. people want only bis items