Saint Panteleimon Monastery was built in 1843 and became monastery in 1987. According to inhabitants of Thassos, someone wanted to build it in favor of Saint Panteleimon. The workers started the building at a location, but the next day when they wanted to continue with the construction, the part they had built was found destroyed and their tools were missing. The same happened on the following days. One day they saw footprints on the ground and followed them until they found their tools nearby a natural spring. Finally, they built the monastery at that spot.
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.