The oldest remains of Bordeaux, the Palais Gallien designates the Roman amphitheater of Burdigala, the 2nd century, which still has beautiful arches, a monumental door and structural elements. A large part of the site occupied by the building is now covered with houses. During the the French Revolution, parts of the building will then be demolished to allow the sale of lots of land and the construction of homes. The remaining vestiges will be classified and confirmed only from 1840. The name of 'Palace Gallien' is the fruit of several legends and confusions around the origin and the dating of the ruins.
References: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.