It is the Cathedral of the Bolzano Bozen- Bressanone Brixen Diocese. It conceals the remains of an early Christian, Medieval and Romanesque (1180) basilica. A hundred years later works are commenced to build a new imposing building which is completed around 1420 by combining the expertise of workers of Lombardy with the gothic style brought by the Swabian expertise over the decades. The bell tower stand over the square, 65 metres tall, with a spire in openwork in sandstone by the Swabian architect Hans Lutz von Schussenried, who completed it between 1501 and 1519. To see: the cross built in Veronese style, the "Wine door", the Romanesque Portal with porch lions, the rose window, the fresco "Virgin with child" credited to Friedrich Pacher, inside the gothic pulpit, the baroque Chapel of the Three Maries. Guided tours to book in the Tourism Board.