Gameist: "Any really immersive heroic adventure has to end with a final conflict in the evil villain's stronghold. We don't make the rules, we just report them. But the fact of the matter is that the importance of the hero's adventure can be measured simply by looking at the evil villain's lair. A hero who has to storm a giant mountaintop castle is on an epic quest. A hero who finds his nemesis in a cave is not on a quest, he's on a bender.
With that in mind, we present a half-dozen of the most terrifyingly villainous lairs ever seen in video games."