Explore the historic highlights of Saaremaa
Saaremaa, Estonia
1959
Saaremaa, Estonia
ca. 1250-1290
Saaremaa, Estonia
13-14th century
Saaremaa, Estonia
1227
Saaremaa, Estonia
1863
Saaremaa, Estonia
13th century
Saaremaa, Estonia
14th century
Saaremaa, Estonia
ca. 1261
Saaremaa, Estonia
1785-1786
Saaremaa, Estonia
1940-1991
Saaremaa, Estonia
1920's
Saaremaa, Estonia
1760-1770
Saaremaa, Estonia
1000-500 BC
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.