The complex history of Nuremberg can be explored via the many medieval architectural structures, castles, and relics that make up this historic land. A trip to the Old Town section of the city is where you'll discover Kaiserburg Castle, one of the most important imperial palaces in Germany and Weinstadel, a typical medieval wine house which also represents a masterpiece of traditional architecture. For history buffs, a visit to Nuremberg would not be complete without a sobering visit to the remains of the Nazi Party Rally Grounds which once covered 11 square kilometers.