The Antoniev Monastery rivalled the Yuriev Monastery as the most important monastery of medieval Novgorod the Great. It stands along the right bank of the Volkhov River north of the city centre and forms part of the Historic Monuments of Novgorod and Surroundings, a World Heritage Site.
The monastery was founded in 1117 by St. Anthony of Rome (Antony Rimlyanin), who, according to legend, flew to Novgorod from Rome on a rock (the alleged rock is now in the vestibule just to the right of the main door into the Church of the Nativity of the Mother of God beneath a fresco of Bishop Nikita of Novgorod). Antonii was consecrated hegumen of the monastery in 1131 by Archbishop Nifont (1130–1156) and was buried beneath a large slab to the right of tha altar in the same church.
The Church of the Nativity of the Mother of God, like the Church of St. George in the Yuriev Monastery, is one of the few three-domed churches in Russia. It is also one of the few buildings in Russia which survived from the 12th century. It was founded by Antonii in 1117 and completed in 1119. There are some frescoes from the Middle Ages still extant, most notably in the apse, but most are from the 16th or 17th centuries and are in some disrepair.
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.