The Cathedral of Saint Mary of Bayonne is the seat of the former Bishops of Bayonne, now the Bishops of Bayonne, Lescar, and Oloron. The cathedral is in the Gothic architectural tradition.
The site was previously occupied by a Romanesque cathedral that was destroyed by two fires in 1258 and 1310. Construction of the present cathedral began in the 13th century and was completed at the beginning of the 17th, except for the two spires which were not finished until the 19th century. The structure has been much restored and refurbished, notably by Émile Boeswildwald, architect to the French government in the 19th century, and a pupil of Eugène Viollet-le-Duc.
The cathedral stands on the Pilgrimage Way of Santiago de Compostela.
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.