Blüse Neuwerk - Credit: Wikimedia Commons
The Blüse Neuwerk (also called Feuerblüse) was built in 1644 by the city of Hamburg on the island Neuwerk. Together with the other beacons and the Great Tower Neuwerk, which was just a fortification at the time, it was the first lighthouse in the Elbe estuary and, after the Blüse Helgoland (1630) and Wangerooge (1631), the third on the German North Sea coast. Read more on Wikipedia
Source: en.wikipedia.org