The Sunken City is located in the bay of Agios Vlasios, on the beach “Kalymnios” of Ancient Epidaurus. Although not a huge site, the underwater city of Epidaurus is very unique and fun to explore. The ruins lie very close to the shore and just 2 meters below the sea level.
The architectural remains include traces of an ancient port, various walls and a cluster of three buildings, the closest of which is located only 45 meters from the shore. This is the structure you’ll be seeing when visiting the site. Archeologists believe these are the remains of a rural Roman villa from the 2nd century, which was inhabited by a wealthy Roman family and their staff.
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.