The Vätteryd grave field, also known as Vätterydshed, dates from the Iron Age. The grave field consists of 183 menhirs, 15 stone ships - the largest 25 m long and 8 m wide - and 2 circles. Many of the stone ships are so damaged that all that remains are parts smaller than half the original size.
In the beginning of the 19th century, Vätteryd, with about 600 menhirs, was considered the largest grave field in Scandinavia. The research conducted between 1955 and 1957 made clear that the site had been a place of cremation burials. The grave goods found - such as bronze jewelry, glass and bronze pearls, and bronze wire - were taken to various museums in Stockholm.
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.