Stanely Castle is located in the waters of Stanely Reservoir. It was probably built in the early 15th century, on an island within a marsh. The castle is now a ruin. Since 1837 it has been partially submerged by the reservoir, and is completely inaccessible. When the water is drained it can be seen that the castle stands on a narrow promontory, which is connected to the reservoir bank on the southwest.
Stanely was the ancient seat of the Danzielstons. In the early 15th century the estate passed to the Maxwells of Calderwood, who sold it on in 1629 to Lady Ross of Hawhead. In the 18th century, it passed to the Boyle Earls of Glasgow. The castle was then used as a school, but was abandoned by the early 19th century. It was sold by the 4th Earl of Glasgow to the Paisley Water Company, who built the present reservoir.
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.