Akhali Atoni, Georgia
1875
Georgia, Georgia
10th century
Aspindza, Georgia
8th century AD
Tbilisi, Georgia
12th century
Tbilisi, Georgia
12th century
Akhmeta, Georgia
10th century
Mtskheta, Georgia
6th century AD
Manglisi, Georgia
6th century AD
Bolnisi, Georgia
478-493 AD
Ubisa, Georgia
9th century AD
Akhali Atoni, Georgia
9th century AD
Poti, Georgia
1906-1907
Pitsunda, Georgia
10th century
Katskhi, Georgia
988-1014 AD
Ateni, Georgia
7th century AD
Achi, Georgia
13th century
Nikortsminda, Georgia
1010-1014
Tsaghveri, Georgia
11th century
Kvemo Teleti, Georgia
19th century
Gagra, Georgia
6th century AD
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.