Probably the most noticeable landmark in Bregenz is the massive St. Martin's Tower (Martinsturm).

 Built between 1599 and 1602 as a watchtower, this historic Baroque building offers superb panoramic views over the town and Lake Constance from its upper levels.

 Highlights include a number of superb ceiling frescoes, as well as a large collection of local history exhibits and displays.