The Church of Panagia ton Myriokefalon in the village of Myriokefala served as the catholicon of the Monastery of Panagia Antifonitria, dating back to the 11th century, which has not survived.
The Monastery was built by Ossios Ioannis Xenos and remained in operation until the early 20th century. Apart from the catholicon, the remaining buildings date back to the 18th and 19th century.
The catholicon belongs to the architectural style of free cross with dome. There are two layers of murals in the church, one dating back to the 11th and the other to the 13th century. The icon of the Virgin Mary in the church is considered miraculous.
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.