Steinsberg Castle is the major landmark in Sinsheim. It is a masterpiece of medieval architecture and includes an unusual octagonal keep. Visitors to the castle, which can be visited 24/7, get a wonderful view of Sinsheim and Kraichgau. On clear days you can see the Vosges mountains, the Black Forest, the Palatinate Forest and the ridges of the Odenwald mountains. In the daytime it is possible to climb the 30-metre keep, which has been renovated both inside and outside. There is also a restaurant, called the Burgschenke, which is an inviting place to try some traditional cuisine.