throw Dracula's Castle at you IN IT'S ENTIRETY! The freaking place seems to be as big as it was in the previous games. Talk about a huge last dungeon
Personally, I thought it was really cool how enemies like Peeping Eye and the Red Skeletons end up as endgame enemies when in previous ones they're usually early game cannon fodder. It really drives home the point of how strong Belmonts are suppose to be compared to "normal" people.
I think that was the best part about the game,
it is like the size of Dawn of Sorrow's map(if not bigger!) and the enemies in there are appropriately hard because shanoa(though she can use magical glyphs) is not a belmont and only a belmont(or alucard) can kill these enemies so easily. So yeah, all these factors make it a hard castle, and thats kick ass