Östergarn church is a little 13th century church where the tower of was never built. It was burnt by the Swedes in 1565 during the Nordic Seven Years' War, whereat all medieval fittings were destroyed. It was also sacked by the Russians in 1715 and 1717. In a grave in the church yard lie the German seamen who fell on board the cruiser Albatross, when she was compelled by superior Russian forces to run ashore near the fishing village of Herrvik in Östergarn in 1915.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.