Karuse church is one of the oldest sacral buildings in Läänemaa – it was built in the 1260s as a fortress-church for the Livonian Order. According the legend Otto von Lutterberg, a Master of the Livonian Order, has been buried in the church. He fell in a battle against Lithuanians, fought on sea ice near the church.
Inside the church you should pay attention to the Baroque-style pulpit and altar. When walking around the churchyard you will see the trapezoid headstones originating from the 13th century and wheel crosses dating back to the 17th century.
Refefence: Visit Estonia
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.