Bismarck Tower - Credit: Wikimedia Commons
The Bismarck Tower in Zielona Góra, Poland (until 1945 Grünberg in Schlesien, Lower Silesia, Germany) is one of the best-preserved Bismarck towers outside of present-day Germany. It is also called the Wilkanowska Tower, after the hill on which it stands. Read more on Wikipedia
Source: en.wikipedia.org