Franciscan Church

St. Peter's Abbey is the oldest abbey of the Benedictine congregation in Austria and the oldest in the German-speaking area. It was founded by St. Rupert around the year 696 as a base for the mission of the inhabitants of the Eastern Alps. In 1622, Archbishop Paris von Lodron erected the University of Salzburg under the Benedictine monastery, which remained closely linked to the abbey until the end in 1810.

Salzburg Cathedral first existed as an 8th-century Romanesque building, but this building burned down twice in 1127 and 1167. An even larger Romanesque building was later erected, becoming the largest church north of the Alps, but the building also burned down in 1598 and was finally demolished in 1606. The present Baroque building was constructed between 1614 and 1628, during the Thirty Years' War. In October 1944, the cathedral dome collapsed during an air raid on Salzburg. From 1945 to 1959, the cathedral was renovated and the dome rebuilt. The building is now a UNESCO World Heritage Site together with the historic city centre of Salzburg.

The Church of the Holy Trinity of Salzburg is considered to be the most important sacred building in the city, located on the right side of the Salzach. The church was built between 1694 and 1702 by order of Prince-Archbishop Johann Ernst von Thun. Several sacred buildings in Rome served as models (including the church of Sant' Agnese in Agone by Francesco Borromini in Piazza Navona).