8 Best Sights in Passau, Franconia and the German Danube

The cathedral rises majestically on the highest point of the earliest-settled part of the city. A baptismal church stood here in the 6th century, and 200 years later, when Passau became a bishop's seat, the first basilica was built. It was dedicated to St. Stephan and became the original mother church of St. Stephan's Cathedral in Vienna. A fire reduced the medieval basilica to ruins in 1662; it was then rebuilt by Italian master architect Carlo Lurago. What you see today is the largest baroque basilica north of the Alps, complete with an octagonal dome and flanking towers. Little in its marble- and stucco-encrusted interior reminds you of Germany, and much proclaims the exuberance of Rome. Beneath the dome is the largest church organ assembly in the world. Built between 1924 and 1928 and enlarged in 1979–80, it claims no fewer than 17,774 pipes and 233 stops. The church also houses the most powerful bell chimes in southern Germany.

In the weeks before Christmas, a traditional market spreads through the old city in the shadow of  Dom St. Stephan. Although often overshadowed by larger markets in Nuremberg or Dresden, Passau's market is less touristy and offers a more authentic experience with vendors from Czechia, Germany, and Austria.

This large square in front of the Dom is bordered by sturdy 17th- and 18th-century buildings, including the Alte Residenz, the former bishop's palace and now a courthouse. The neoclassical statue at the center is Bavarian King Maximilian I, who watches over the Christmas market in December.

The world's most comprehensive collection of European glass is housed in the lovely Hotel Wilder Mann. The history of Central Europe's glassmaking is captured in 30,000 items, from baroque to art deco, spread over 35 rooms. The museum also houses the world's largest collection of cookbooks.

The cathedral museum houses one of Bavaria's largest collections of religious treasures, the legacy of Passau's rich episcopal history. The museum is part of the Neue Residenz, which has a stately baroque entrance opening onto a magnificent staircase—a scintillating study in marble, fresco, and stucco.

Passau's 14th-century Town Hall sits like a Venetian merchant's house on a small square fronting the Danube. It was the home of a wealthy German merchant before being declared the seat of city government after a 1298 uprising. Two assembly rooms have wall paintings depicting scenes from local history and legend, including the (fictional) arrival in the city of Siegfried's fair Kriemhild, from the Nibelungen fable. The Rathaus tower has Bavaria's largest glockenspiel, which plays daily at 10:30, 2, and 7:25, with an additional performance at 3:30 on Saturday.

While excavating a 17th-century pilgrimage church, archaeologists uncovered a stout Roman fortress with five defence towers and walls more than 12 feet thick. The Roman citadel Boiotro was discovered on a hill known as the Mariahilfberg on the south bank of the river Inn, with its Roman well still plentiful and fresh. Pottery, lead figures, and other artifacts from the area are housed in this museum at the edge of the site.

The powerful fortress and summer castle commissioned by Bishop Ulrich II in 1219 protects Passau from an impregnable site across the river from the Rathaus. Today the Veste Oberhaus is Passau's most important museum, containing exhibits that illustrate the city's 2,000-year history. From the terrace of its café-restaurant (open Easter–October), there's a magnificent view of Passau and the convergence of the three rivers.