Fuentetétar Castle is a rural castle from the 12th and 13th centuries that is located next to the village or farmhouse of the same name, rising on the top of a high hill from which much of the surrounding lands is controlled, visually connecting with the castle of Jaén and with the castle of Zumel.
At present it is inhabited as a farmhouse, having undergone important reforms. Its keep, made of masonry, has practically disappeared. Some of its rooms are used as a stable for goats, among others. It presents numerous emergent remains from all eras.
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.