2 Best Sights in Eastern Switzerland, Switzerland

Built between 1564 and 1589 in full circle form based on an idea by Albrecht Dürer, the massive stone ramparts served as a fortress allowing for the defense of the city on all sides. From its top are splendid Schaffhausen and Rhine Valley views.

Once a part of the city wall, the tower dates from 1361. Inside the arch on the keystone is a relief from 1933 that bears a wise caution for anyone crossing the street: Lappi tue d'auge uf ("Open your eyes, you idiot!"). The tower's counterpart, the Obertorturm, lies just off the Fronwagplatz.