Bismarck Tower (Aachen)
Aachen-Mitte, Germany · built 1907
The Aachen Bismarck Tower is one of 173 still-standing towers and columns (of the 240 originally built), which were constructed in the German Empire between 1869 and 1934 to commemorate the founder of the German state, Otto von Bismarck (1815-1898).
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).