Passau: Veste Oberhaus
Note: The second digit from the left is another way of depicting the number "4". The the full number given is '1499'—the year that particular of the building was constructed.
Overlooking Passau to the north is the Veste Oberhaus. This is the former castle of the prince bishops, and was built in stages between 1250 and 1482, finally achieving the large buildings you see today. The bishops left the building in 1802, and Napoleon I used it as a base for attacking Austria. It was also used by the Bavarian and Austrian armies, and used as a prison. Since 1932 it has been a history museum for Passau. As well as displaying the history of the building, it also covers the history of Passau and the region, and has an art exhibition of local artists. There is a restaurant in the building. The museum is open year-round and has an entrance fee.