Dibella's Watch adds an entire new continent to Oblivion. It comes complete with a major city, castles, towns, villages, farms, monasteries and all the good stuff that makes up a Medieval landscape. There's also fighting to be had and quests to be made!
The University of Constanze is the seat of higher learning in Dibella's Watch. The Principal, here seen in the middle of the pic, is also a well-known author and have written works on the history and political life of the continent.