Tower of the Sophienkirche or Sophien Church, dating from the early 18th century. It was renovated in the late 19th century. This is the only surviving Baroque church tower in Berlin. It's located in the Spandauer Vorstadt part of Berlin Mitte.
Read a fascinating description of the Spandauer Vorstadt here
Berlin Sophien Church Tower
Berlin, churches, religious sites, towers, Spandauer Vorstadt, Sophienkirche, Germany