Castello Cova was built between 1910 and 1915 on a design by architect Adolfo Coppedè (brother of the more famous Gino Coppedè), it is an example of Gothic Revival architecture, with guelph-style merlons decorating the external rusticated walls as well as the middle-ages styled tower. The tower of Castello Cova was reportedly an inspiration for the architects of the Velasca Tower, a landmark skyscraper in the centre of Milan. The Pusterla di Sant'Ambrogio, an ancient postern of the Medieval walls of Milan facing Castello Cova, was recreated in the late 1930s in a style that matches the Revival style of the Castello.
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.