This building is a little mystery. It was built as a train station, it looks more like a castle, but it is, in fact, a city hall. This neoclassical architectural gem is definitely worth checking out, especially in summer when its grounds host many great concerts and events.
Wikipedia https://uk.wikipedia.org/wiki/Альтонська_ратуша
Official Website https://www.hamburg.de/altona/
Email bezirksamt@altona.hamburg.de
Phone +49 40 42828-0
Address Platz der Republik 1, 22765 Hamburg, Germany
Coordinates 53°32'49.226" N 9°56'7.462" E