Zurich lies in the north-eastern part of Switzerland, stretching picturesquely on Lake Zurich. There are two rivers flowing through the city: the Limmat and Sihl. Zurich has a very characteristic panorama of the Old Town, which thanks to the soaring towers of three churches cannot be mistaken for any other. The three churches that have been mentioned above are the Fraumünster, the 13th-century temple decorated with stained-glass windows designed by Marc Chagall, the Grossmünster cathedral with twin towers from the 15th century and the oldest church in Zurich – Sankt Peterkirche with a clock measuring 8.7 m. The most valuable buildings of the city are linked by the Münsterbrücke, i.e. the bridge over the River Limmat opened in 1838.