The Kildalton Cross is a monolithic high cross in Celtic cross form in the churchyard of the former parish church of Kildalton. It was carved probably in the second half of the 8th century AD, and is closely related to crosses of similar date on Iona. It is often considered the finest surviving Celtic cross in Scotland, and is certainly one of the most perfect monuments of its date to survive on western Europe. A simpler cross of late medieval date stands nearby.
The Kildalton Cross features an iconic image of the Virgin and Child, which is closely related to similar Virgin and Child iconography found on St. Martin's Cross and St. Oran's Cross at Iona.
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.