The Castle of la Punta de Amer is a 17th century fortification located in Sant Lorenzo des Cardessar on the island of Mallorca. The sandstone structure was built in the late 17th century, and is now a protected site.
During the 16th century, the need for guarded coastlines arose as pirates from northern Africa and the Ottoman empire continuously attacked Majorca.
However, the final decision of erecting this fortress was not made until a violent attack happened in 1611 which caused severe damage to the east cost. Due to financial struggles and economic decline in Manacor, the construction of the fortress began 1693 and was finished in 1696.
The fortress rises 35 meters above sea level. During service time, the fortress was guarded by 2-3 guards, armed with sables, muskets and pistols. Moreover, the tower was equipped with a canon on the platform which could shoot at hostile ships entering the bays of Cala Millor and Sa Coma. The original cannon is still here by the way.
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.