Many cities in central and eastern Europe have sections informally designated "Old Town" that are surrounded by modern high rises — but that's not the case in Passau. The relatively small town is located at the southernmost tip of Bavaria at the confluence of three rivers — the Danube, the Inn and the Ilz. Passau is quite literally a very old town — Crusaders stopped here on their way to the Holy Land. Today, Passau reflects the look and the feel of a prosperous 17th century community. Complete with narrow lanes, cobblestone streets, distinctive architecture, an imposing cathedral, a lovely city hall and shops for merchants and artisans, Passau is best experienced on a walking tour.