Crossing Tumski Bridge from Wyspa Piasek (Sand Island), this is the first church you'll encounter on Ostrów Tumski. Original construction of this Gothic brick church took nearly 50 years between 1404 and 1452, only to see it destroyed by two fires, rebuilt, and then 40% obliterated during Festung Breslau. Reconstructed in the 1950s, the accuracy of the interior has since been disputed. Though you might find the front doors open depending on the priest's whimsy (8:00-16:00 Mon-Fri as a rough rule), getting past the inner gates to see the church in detail is possible by prior arrangement only.