Castillo de Guardias Viejas is a battery built in 1769, near the rocky surface low rise of the Mediterranean Sea. Owned by the Regional Government of Andalusia, the municipality has carried out renovation work in the building, which houses a permanent exhibition of clothes and weapons of the Napoleonic era.
It was restored in 1980. The castle is one of five forts in the town, next to the Moorish Tower Hill, the Square Tower, Tower of the Netherlands and the Tower of Balerma. It has been a venue for musical events such as the Natural Music Festival and the festival Creamfields Andalucía.
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.