Elis, Greece
8th century BCE
Monemvasia, Greece
6th century AD
Argos-Mykines, Greece
1600-1100 BCE
Corinth, Greece
9th century BCE
Epidaurus, Greece
4th century BCE
Epidaurus, Greece
4th century BCE
Corinth, Greece
7th century BCE
Argos-Mykines, Greece
1300-1250 BCE
Oichalia, Greece
450-400 BCE
Argos-Mykines, Greece
1400-1200 BCE
Messini, Greece
369 BCE
Methoni, Greece
13th century
Mystras, Greece
1249
Argos-Mykines, Greece
320 BCE
Patras, Greece
2009
Argos-Mykines, Greece
12th century
Patras, Greece
6th century AD
Elis, Greece
1220s
Sparta, Greece
7t
Kalavryta, Greece
362 AD
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.