Mycenae is an archaeological site near Mykines in Argolis, north-eastern Peloponnese, Greece. In the second millennium BC, Mycenae was one of the major centres of Greek civilization, a military stronghold which dominated much of southern Greece, Crete, the Cyclades and parts of southwest Anatolia. The period of Greek history from about 1600 BC to about 1100 BC is called Mycenaean in reference to Mycenae. At its peak in 1350 BC, the citadel and lower town had a population of 30,000 and an area of 32 hectares.
In 1999, the archeological site of Mycenae was added to the UNESCO World Heritage List, along with the nearby site of Tiryns, because of its historical importance as the center of the Mycenaean civilization, its outstanding architecture, and its testimony to the development of Ancient Greek civilization.
The stone architecture of Mycenae is unique in its kind, influenced by many civilizations like the Minoans in Crete. The archaeological excavations which began during the second half of the 19th century brought to light important architectural remains from the Mycenaean civilization including palaces, fortresses, settlements and burial monuments. The Mycenaean fortresses that lie on top of the rocks dominate the surrounding area, encircled by the strong walls. Of high interest are the palaces which are built in prominent locations and constitute building complexes and cobbled yards.
The characteristic Mycenaean tombs are also an important part of its architecture, the most famous being the tomb of Agamemnon (the Treasury of Atreus) which is in the form of a tholos. Nearby are other tombs, possibly Agamemnon ancestors. One of the distinctive features of the Mycenaean architecture is the very large stone blocks which characterize the brilliant fortification structures like the fortifying walls of the Acropolis, the Lion Gate and the Cyclopean walls (the myth says that they were constructed by the Cyclops).
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.