Sohail Castle was built in AD 956 by Abd-ar-Rahman III to strengthen the coastal defenses. Later, in the 12th century, the Almoravids raised a defensive enclosure with an irregular floor plan, adapted to the slopes of the terrain.
In 1485 the Castillo de Sohail was occupied by the Christian armies battling against the Nasrid Kingdom of Granada. From that time the military complex underwent an inevitable process of architectural reformation which led over time to its current appearance.
Shortly after the castle lost its military function and was disposed of by public auction. The change to civilian hands initiated a period of neglect which was only interrupted in the second half of the 20th century.
In 2000 the Town of Fuengirola renovated the ruins of the castle turning it into a tourist attraction and functioning space used for concerts and other festivals. Excavated stone ruins on public display at the western base of the hill on which the castle sits are dated back to before the Roman Republic occupied Fuengirola at least 300 BC.
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.