The Saint-Martin-de-Corléans Megalithic Area is an archaeological site that is considered of major importance for the study and knowledge of European prehistory and protohistory, located in Aosta, Italy.
The site contains megalith dolmen and cist tombs, oriented alignments of holes in wooden poles and anthropomorphic stele dating back to the Neolithic era through the Bronze Age.
The site was discovered in 1969 during the construction of condominiums. Given the historical significance of the site, the Aosta Valley Regional Government purchased it to ensure protection and proper archaeological excavation. In the early 2000s the Saint-Martin-de-Corléans Archaeological Museum and Park was built over the site.
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.