Teampull na Trionaid ('trinity church') is a ruined 13th-century church and seminary at Carinish. Amie mac Ruari is said to have rebuilt the church in the 14th century after her divorce from John of Islay, Lord of the Isles. The ruins are protected as a scheduled monument. The Battle of Cairinish was fought near the church in 1601.
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.