The Venetian arsenal at Gouvia was a shipyard built by the Republic of Venice during their rule over the island of Corfu. It was located on the west side of what used to be called 'Govino Bay', the current location of the modern village of Gouvia.
The arsenal was built in 1716 as part of defenses against the Ottomans. It was abandoned by the Venetians in 1798, when the Venetian Republic ceased to exist.
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.