The Grossmünster (Cathedral) was once a Roman church located in the city center, built during the 11th and 13th centuries AD. According to legend, Holy Roman Emperor Charlemagne founded Grossmünster around c. 810 CE to house the bones and relics of the early Christian martyrs Saint Felix, Saint Regula and Saint Exuperantinus, who are said to have fled to Zürich and died in the city in the 3rd century AD. original.
 Grossmünster is Zürich's most famous and recognizable landmark thanks to its twin towers, which still hold a prominent place in Protestant Christianity due to its role in the Protestant Reformation in Switzerland. Si, starting with the scout Ulrich Zwingli in 1519-1520. Together with Fraumünster, Predigerkirche and St. Peterskirche, Grossmünster is one of the oldest and largest churches in Zürich. The cathedral's three arches are also the largest of any church in Switzerland.
 Grossmünster's architecture adheres to the basic principles of the Romanesque style: the main column rectangular shape, the carved gate and the church tower. The fenugreek trees here have elegant groin arches and its nave has a pointed arch. Special features in the church are the glass windows of Sigmar Polke, the Roman catacombs, the Roman capital in the church and monastery, the stained glass windows of Augusto Giacometti (1932), the bronze doors by Otto Münch ( 1935 and 1950), and the Reformation museum in the monastery.
 Address: Grossmünsterplatz, 8001 Zürich
 Opening hours: - 1st March - 31st October: 10:00 - 18:00
 - November 1st - February 28th: 10:00 - 17:00