Mostar, Bosnia and Herzegovina
1618
Sarajevo, Bosnia and Herzegovina
1530
Sarajevo, Bosnia and Herzegovina
16th century
Sarajevo, Bosnia and Herzegovina
16th century
Sarajevo, Bosnia and Herzegovina
16th century
Sarajevo, Bosnia and Herzegovina
1884
Sarajevo, Bosnia and Herzegovina
1863
Sarajevo, Bosnia and Herzegovina
1541-1561
Sarajevo, Bosnia and Herzegovina
1457
Mostar, Bosnia and Herzegovina
16th century
Sarajevo, Bosnia and Herzegovina
1914
Sarajevo, Bosnia and Herzegovina
1902
Sarajevo, Bosnia and Herzegovina
1936-1940
Banja Luka, Bosnia and Herzegovina
1929/2004
Sarajevo, Bosnia and Herzegovina
1560
Banja Luka, Bosnia and Herzegovina
1579/2016
Bihać, Bosnia and Herzegovina
1266
Višegrad, Bosnia and Herzegovina
1343
Livno, Bosnia and Herzegovina
1574
Bihać, Bosnia and Herzegovina
15th century
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.