exterior view of julius tower in the spandau citadel. berlin, germany

tourist bastion vintage museum window roof towered castles round tower castle towers attraction historical sightseeing building landscape wall travel fort old capital architecture landmarks germany exterior view julius citadel zitadelle fortress berlin best-preserved renaissance military europe structures spandau ancient antique denmark historic history house landmark medieval spandau39aph39s meters high one spandau#39aph39#s german: germany high europe