Jerusalem, Israel
c. 700 BC
Acre, Israel
1110
Jerusalem, Israel
Mostly 16th century
Acre, Israel
13th century
Jerusalem, Israel
100-200 CE
Jerusalem, Israel
520 CE
Safed, Israel
12th century
Beit She'an, Israel
1168
Eilon, Israel
12th century
Atlit, Israel
12th century
Ashdod, Israel
7th century AD
Acre, Israel
12th century
Beit Nekofa, Israel
1140-1160
HaBonim, Israel
8th century AD
Atlit, Israel
1218
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.