Westlicher Wachturm
The Westlicher Wachturm is a ruined tower located just outside Weißlauf to the west-southwest. Irileth leads the Dragonborn and some of the Weißlauf Wache there to kill the dragon, Mirmulnir. The western watchtower will not appear as a map marker until you have activated the quest "Der Aufstieg des Drachen".