Kugelbake

The Kugelbake is a historic day beacon in the city of Cuxhaven, Germany, at the northernmost point of Lower Saxony, where the River Elbe flows into the North Sea. In the Low German dialect of the Middle Ages, the term bake referred to all navigational aids – including lighthouses. About 30 meters (100 feet) high and built of wood, the Kugelbake is the principal landmark of Cuxhaven; since 1913, it... (Wikipedia)