Your favorite Zelda dungeon

I'm almost done playing through A Link to The Past and I've been thinking about which dungeon is my favorite in that game. This game has some genious dungeon designs. But what about picking one dungeon out of all the Zelda games combined? Can one person make such a difficult decision? I'm asking all of you to weigh in on this question and explain why you chose the dungeon you chose. Let's have some fun with this.

I think that award would go to Hyrule Castle in TLoZ:The Wind Waker.

Same for me, Wind Waker's Hyrule Castle. Even though I've gone through Wind Waker numerous times, there's this one room that always stumps me, keeping things fresh. Coupled with the fact that you could glitch your way into the world of Hyrule right outside the temple, it evoked old memories of Ocarina of Time and created new ones.

Oh, and it had tons of Iron Knuckles, which are the most fun enemies to fight in the Zelda series to me.