The church, sometimes known as the Wallfahrtskirche, was built in the early 15th century from volcanic stone, some of it filched from a nearby Roman ruin. Originally Gothic, it later received Romanesque and baroque modifications. The exterior south wall is embedded with relief panels and ancient gravestones; look for the Roman mail wagon carved into one of the stones and the weird frescoes of people growing out of bulbous flowers on the church ceiling (they represent the genealogy of Christ).
