Arbroath Abbey was founded in 1178 by King William the Lion for a group of Tironensian Benedictine monks from Kelso Abbey. It was consecrated in 1197 with a dedication to the deceased Saint Thomas Becket, whom the king had met at the English court. It was William's only personal foundation — he was buried before the high altar of the church in 1214.
The Abbey, which was the richest in Scotland, is most famous for its association with the 1320 Declaration of Arbroath, believed to have been drafted by Abbot Bernard, who was the Chancellor of Scotland under King Robert I.
The last Abbot was Cardinal David Beaton, who in 1522 succeeded his uncle James to become Archbishop of St Andrews. The Abbey is cared for by Historic Scotland and is open to the public throughout the year.
The Abbey was built over some 60 years using local red sandstone, but it gives the impression of a single coherent, mainly 'Early English', architectural design, but the round-arched processional doorway in the western front looks back to late Norman or transitional work. The triforium (open arcade) above the door is unique in Scottish medieval architecture. It is flanked by twin towers decorated with blind arcading.
What remains of it today are the sacristy, added by Abbot Paniter in the 15th century; the southern transept, which features Scotland's largest lancet windows; part of the choir and presbytery; the southern half of the nave; parts of the western towers; and the western doorway. The church originally had a central tower and (probably) a spire, which would once have been visible for many miles over the surrounding countryside and certainly acted as a sea-mark for ships.
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.