Keselo is a small medieval fortress just above the village of Omalo. The site is surrounded by the northern slopes of the Greater Caucasus Mountains. It is bordered in the north by Republic of Chechnya and Dagestan, in the east by the Georgian historic provinces Kakheti and Pshav-Khevsureti to the south.
Traditionally Tush peoples abandoned their villages and used towers as temporary shelters during raids on their villages. Keselo was constructed during the Mongol invasion of Georgia in 1230s. It originally had 13 towers. The inhabitants of old Omalo used the towers to protect themselves from the invading Mongols and later raids by Daghestani tribes.
By the 20th century, most of the towers were in ruins. However, in 2003, work began to rebuild five towers of the medieval fortress. The project was privately sponsored by Henk and Eliane Hooft, a Dutch family living in Georgia and later by the Keselo Foundation. The restoration was done in accordance with the medieval Tush techniques of constructing fortified towers. A monument was also erected in the nearby village of Dartlo and a tower in Khiso, on the road to Omalo, was also rebuilt. During the work, an array of archaeological artefacts, such as ancient rock art motifs and Bronze Age axes and jewellery, were discovered.
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.