Bern's bell tower (Zytglogge) Founded in the early 13th century, the 800-year-old clock tower is still Bern's most iconic landmark. Bern's bell tower is very interesting. There are dolls on the clock face every 4 minutes before the hour. After starting to spin, the dolls will come out and make a round have served as the clock tower of the gate guard tower; now it has been listed as an important representative of the Swiss national property is the world heritage project Bern Old Town Address: Zytglogge 1