The Palace of the Counts of Cocentaina, located in the municipality of Cocentaina, Alicante, Spain, is a 14th-century medieval building. This building originated as an old fortress with four halls and four towers on donjons crowned by merlons.
The art gallery of the palace shows works with artistic value such as the gothic altarpiece of Saint Barbara or the altarpiece of Saint Anthony by Nicolás Borrás and a sacred Bible from the 15th century.
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.