Rustovo Monastery is located around three kilometres above the Praskvica Monastery. It is dedicated to the Assumption of the Holy Mother of God and it has been convent since 2004. The graves of monks were discovered in the monastery yard, which proves that a number of monks lived here as early as in the Middle Ages. Within the Monastery complex, there is a little chapel dedicated to St Benedict of Nursia, as well as a more recent church dedicated to the Holy Royal Martyrs, the Romanovs.
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.