 It contains the Turmberg in the east, and also lies on the borders of the Kraichgau leading to the Northern Black Forest.The Rhine, one of the world's most important shipping routes, forms the western limits of the city, beyond which lie the towns of Maximiliansau and Wörth am Rhein in the German state of Rhineland-Palatinate.The city centre is about from the river, as measured from the Marktplatz (Market Square).