The Heraion was a sanctuary dedicated to the goddess Hera, situated 8 kilometers from Argos. Built on the southern foothills of the Euboian mountain range, it included ritual sites like the Eleutherian Water for purification and the river Glykeia. Excavations revealed its connection to Mycenaean times and its importance grew from the 8th century BC, becoming a key religious and political center for Argos.
The sanctuary featured a monumental stairway leading to terraces with structures like a Doric stoa and a new temple designed by architect Eupolemos in 420 BC, housing renowned sculptures. Additional structures included an altar and a hypostyle hall, reflecting its significance in Hellenistic and Roman eras. The site remained revered by the Argives until late antiquity, reflecting its enduring importance in Greek religious life.
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.