window with bars of the julius tower in the spandau citadel. berlin, germany

bars window block inside black embrasure room interior detail ancient antique architecture bastion berlin building citadel europe fort fortress germany historic historical history landmark landmarks landscape medieval military old renaissance roof tourist tower vintage wall european light shadows brick brown dark daylight element background home frame construction decor germany julius spandau citadel one spandau#39aph39#s meters high german: zitadelle