Founded by Charlemagne in the 9th century (but heavily reworked since), Zürich's twin-towered landmark cathedral sits directly across the river from Fraumünster. The interior showcases stained-glass work by Augusto Giacometti. For nice views, climb the southern tower, the Karlsturm .
Firebrand preacher Huldrych Zwingli (1484–1531) began speaking out against the Catholic Church here in the 16th century, and thus brought the Reformation to Zürich. Zwingli’s house , where he lived and worked, is nearby.
