Veliko Mlačevo, Slovenia
15th century
Novo mesto, Slovenia
1217
Polzela, Slovenia
12th century
Smlednik, Slovenia
12th century
Kamnik, Slovenia
14th century
Lendava, Slovenia
12th century
Podsreda, Slovenia
c. 1150
Braslovče, Slovenia
12th century
Hrastje, Slovenia
14th century
Mirna, Slovenia
12th century
Hrastovec, Slovenia
13th century
Pivola, Slovenia
14th century
Ribnica, Slovenia
12th century
Loka pri Mengšu, Slovenia
1530
Begunje, Slovenia
1428
Nazarje, Slovenia
12th century
Vipava, Slovenia
13th century
Trebnje, Slovenia
13th century
Turjak, Slovenia
12th century
Raka, Slovenia
12th 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.