Sparreholm Castle is a manor house in Flen Municipality, Södermanland County, Sweden. The estate is located on Lake Båven just outside the community of Sparreholm in Hyltinge parish.
The main house received its current appearance in the 1890s according to drawings by architect Johan August Westerberg (1836-1900). At the manor there is a conference facilities and a café. Sparreholm automobile museum is located in a separate hall building east of the manor. South of the manor in the former carriage house is a large collections of jukeboxes. In the ground floor of the building is the bicycle museum.
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.