On dungeons: I don't want to do a mega dungeon, but I still want PCs to explore in the traditional manner. One thing I am thinking of is that all of the ancient burial tombs are far more extensive inside that the mounds or cairns would suggest. Maybe the first two or three chambers seem "normal" but as you go deeper it starts to expand and change. There is some mystical effect-- maybe based on the land, maybe religious, I haven't decided -- that turns the tomb into a kind of mini heaven or hell based on the nature of, deeds and sins of the one buried within.
Something like this would let me do very different isolated dungeons while not having to rely on the IMO boring 5 room model.
Thoughts?