Originally built in the 10th century, the The Church of Santiago has pre-Romanesque windows reminiscent of those of the Church of San Salvador de Valdediós. (Pre-Romanesque architecture in Asturias is framed between the years 711 and 910, the period of the creation and expansion of the kingdom of Asturias). It was refurbished in the 15th or 16th centuries. The church was burned down during the Spanish Civil war and rebuilt.
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.