Fodor's Expert Review Dome Cathedral

In the Dome Square, the nerve center of the Old Town, the stately 1211 cathedral dominates. Reconstructed over the years with Romanesque, Gothic, Baroque, and Art Nouveau elements, this place of worship is astounding as much for its architecture as for its size. The massive 6,768-pipe organ is among the largest in Europe, and it is played nearly every day. Check at the cathedral or its website for schedules and tickets.