Cieszyn, Poland
1709
Tarnobrzeg, Poland
1677
Żarnów, Poland
12th century
Brodnica, Poland
1310-1370
Szczyrzyc, Poland
1234
Śrem, Poland
15th century
Krotoszyn, Poland
1733-1772
Chotyniec, Poland
1671
Łódź, Poland
1701-1723
Recz, Poland
1352
Trzcinica, Poland
15th century
Tarnobrzeg, Poland
1160
Miejsce Odrzańskie, Poland
1770
Strzelniki, Poland
1688
Gościęcin, Poland
1661
Laskowice, Poland
1686
Woskowice Małe, Poland
1711
Kołbacz, Poland
1173
Sękowa, Poland
1520
Baldwinowice, Poland
1414
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.