Vardzia is a cave monastery site excavated from the slopes of the Erusheti Mountain on the left bank of the Kura River. The caves stretch along the cliff for some five hundred meters and in up to nineteen tiers.
Vardzia was inhabited during the Bronze Age and indicated the reach of Trialeti culture. Four distinct building phases have been identified at Vardzia. The first was during the reign of Giorgi III (1156-1184), when the site was laid out and the first cave dwellings excavated. The second period was between his death and the marriage of his successor Tamar in 1186, when the Church of the Dormition was carved out and decorated. The third was from that date until the Battle of Basian c.1203, during which time many more dwellings as well as the defences, water supply, and irrigation network were constructed. The fourth period was a partial rebuilding after heavy damage in the earthquake of 1283.
The Church of the Dormition, dating to the 1180s during the golden age of Tamar and Rustaveli, has an important series of wall paintings. The site was largely abandoned after the Ottoman takeover in the sixteenth century.
Now part of a state heritage reserve, the extended area of Vardzia-Khertvisi has been submitted for future inscription on the UNESCO World Heritage List.
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.