Ok this might be involved with a quest i dont know. But i stumbled across a little place called alftand, near winterhold, read a book talking of ruins....i keep walking around this "Alftand" to see scaffolding and ruins...also acompanied by a cave, named Alftand Glacial Ruin.
Seriously check this ruin out! I was amazed. I knew beth said there would be more beautiful and variety of dungeons, but I never expected some of what iv seen!