Church of Saint Juraj is a true pearl of ancient Croatian sacral architecture and was designed as a enormous sundial and calendar. Experts speculate that it was made between the 9th and 11th century and it is ranked as one of the most beautiful churches alongside other beauties such as Church of Holy Cross in Nin and Saint Pelegrin in Savar.
It is preserved in its original form of a semi-cross with a characteristic dome shaped as ellipse and a barrel vault.
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.