The Church of Santo Adriano de Tuñón is located on the bank of the River Trubia, next to an old Roman road. Founded on January 24, 891, by Alfonso III of Asturias and his wife Jimena of Navarra as a monastery church, it went through large transformations at the beginnings of the 12th century. It was declared a Spanish national monument in June 1931.
The church stands on a classic basilica ground plan, although in the 17th and 18th centuries it was extended with a nave structure at the western end, and a bell gable.
Mural paintings were rediscovered in the 20th century. The fresco paintings in this church are the only remains of Mozarabic painters' work in an Asturian art workshop.
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.