closed embrasure of the julius tower in the spandau citadel. berlin, germany

block inside black embrasure closed room interior detail design ancient antique architecture bastion berlin building citadel europe fort fortress germany historic historical history house landmark landmarks landscape medieval military old renaissance roof round tourist tower travel vintage wall window european light lighthouse shadows shape brick brown dark daylight element germany julius spandau citadel spandau#39aph39#s meters high german: zitadelle