Sundrum Castle is located 1.5 kilometres north of Coylton. It was originally built in the 14th century for Sir Duncan Wallace, Sheriff of Ayr, and considered one of the oldest inhabited castles in Scotland. Long-term owners included the Cathcart family, and the Hamilton family, who expanded it the 1790s, incorporating the original keep into a mansion.
It was further expanded in the early 20th century by Earnest Coats. For a time it was then a hotel, though fell into disrepair. After extensive renovations in the 1990s, it was split into multiple privately owned properties. The Sundrum estate now also includes a holiday park.
The castle is split into three separate properties, consisting of the original tower keep, and separate Georgian and Victorian wings, each with their own style.
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.