Fodor's Expert Review Festung Marienberg
Visible from just about anywhere in town, this hilltop complex was the original home of the prince-bishops, beginning in the 13th century. The oldest buildings, including the Marienkirche (Church of the Virgin Mary) date from around AD 700, although excavations have disclosed evidence there was a settlement here in the Iron Age, approximately 1200 BC. In addition to the rough-hewn medieval fortifications, there are a number of Renaissance and baroque apartments. Tours in English, normally held on weekends, meet at the Museum Shop. To reach the Marienberg, make the fairly steep climb on foot through vineyards or take Bus 9, starting at the Residenz, with several stops in the city. It runs about every 40 minutes from April to October. The fortress is undergoing renovations through 2030, with a rolling schedule of closed sections. The fortress also houses two additional museums.