Gergeti Trinity Church is situated on the right bank of the river Chkheri (the left tributary of the river Terek), at an elevation of 2170 meters, under Mount Kazbegi.
The Gergeti Trinity Church was built in the 14th century, and is the only cross-cupola church in Khevi province. The separate belltower dates from the same period as the church itself. Its isolated location on top of a steep mountain surrounded by the vastness of nature has made it a symbol for Georgia. The 18th century Georgian author Vakhushti Batonishvili wrote that in times of danger, precious relics from Mtskheta, including Saint Nino's Cross were brought here for safekeeping. During the Soviet era, all religious services were prohibited, but the church remained a popular tourist destination. The church is now an active establishment of the Georgian Orthodox and Apostolic Church
The church is a popular waypoint for trekkers in the area, and can be reached by a steep 1 1/2 hour climb up the mountain, or around 30 minutes by jeep up a rough mountain trail.
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.