Historical Village of Hokkaido (北海道開拓の村, Hokkaidō Kaitaku no Mura) is an open-air museum in Sapporo. It opened in the Nopporo Shinrin Kōen Prefectural Natural Park in 1983. It includes fifty-two historical structures from the 'frontier days' of the Meiji period to the Shōwa period that have been relocated and reconstructed or recreated, divided into four zones: town (with thirty-one buildings), fishing village (four buildings), farming village (fourteen buildings), and mountain village (three buildings).
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.