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!
Scarley castle sits as the king of Scarleshire and watches over the village and the lush, English-looking countryside. One day you will be its medieval lord, and own that castle, I promise.