Photos: Taken on iPhone by RW while living and working in Basel, Switzerland.
Link 1: https://en.wikipedia.org/wiki/Fraum%C3%BCnster
Link 2: https://www.tripadvisor.ca/Attraction_Review-g188113-d196027-Reviews-Church_of_Our_Lady_Fra
Link 3: With 5793 pipes, the organ in the Fraumünster Church is the largest in the Canton of Zurich. A cycle of frescos by Paul Bodmer depicts the legend of the founding of the monastery and of the city's patron saints Felix and Regula.