Architects, Architecture, Berlin, Church, Hans Hertlein, Historic preservation, K. A. Hermann, Karl Janisch, Mosque, Mughal Style, Sacral architecture, Siemensstadt, Spandau, Tours, Weimar Republic, Wilmersdorf24. August 201816. September 2020 New tour: Sacral buildings of the Siemensstadt & Mosque Exciting stories about the construction (and dismantling) of the churches and the symbolism. Interesting for everyone. Including: One of the most beautiful Mosques ever. Built at the same time as the churches visited.