"Fraumünster: Chagall, Giacometti and Zurich's Largest Organ This small, elegant church near Paradeplatz has been around since 853, but it wasn’t until 1970 when it received its crowning touch: five glorious stained glass windows created by Marc Chagall when he was in his 80s. Also not to be missed: Augusto Giacometti’s magnificent mosaic. The massive 5,793-pipe organ, the largest in Zurich , plays every Wednesday at 7:45 am."