Six kilometers (4 miles) from Winterthur, Schloss Kyburg is the largest castle in eastern Switzerland, dating from the Middle Ages. The stronghold was the ancestral home of the counts of Kyburg until 1264, when the Habsburgs took over. The Kyburg counts were local rulers and of little interest to visitors today, as their history has long been overshadowed by the more powerful and more famous Habsburg dynasty. It was ceded to Zurich in the 15th century and is now a museum of antiques and armor. There's a good view from the keep. You may also visit the residence hall of the knights, parapet, and chapel.