The foundations of Visingsborg Castle date from 1560s. It was square formed with a moat four towers. The Brahe Family lived in Visingsborg Castle during the 16th and 17th centuries. During their time was one of the most impressive buildings in Sweden. Sculptures and paintings embellished the walls and a large number of books filled the library. The castle also had an armoury that equipped up to 800 soldiers. Outside the walls were large orchards and gardens.The Visingsborg Castle was empty for several years after the death of Count Per Brahe the Younger in 1680. Later, in the early 18th century, it was used as a camp for Russian war prisoners. It is said that it was these prisoners who finally burnt down the castle in 1718. What is left today is only the left wing.
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.