Öskü, Hungary
11th century
Zirc, Hungary
12th century
Siklós, Hungary
1543-1565
Szombathely, Hungary
1797-1814
Csaroda, Hungary
13th century
Cserkút, Hungary
13th century
Csenger, Hungary
c. 1322
Pécsvárad, Hungary
11th century
Lónya, Hungary
13th century
Csengersima, Hungary
13th century
Velemér, Hungary
13th century
Pécs, Hungary
15th century
Őriszentpéter, Hungary
1230
Szentgotthárd, Hungary
1183
Csempeszkopács, Hungary
13th century
Árpás, Hungary
13th century
Bodrogolaszi, Hungary
12th century
Sóly, Hungary
1009
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.