Sospel Cathedral formerly the seat of the schismatic Bishopric of Sospel, created in 1378. Apart from a belltower of either the 11th or the 13th century, from the Lombard period of Sospel's history, the cathedral was built between 1642 and 1762, and is claimed to be the largest building in the Alpes-Maritimes. The Renaissance façade is from 1642, and contains in two niches the statues of the town's protectors, Saint Hippolytus and Saint Absende. Inside, the principal feature is the altarpiece in carved wood in three panels, containing the figure of the 'Immaculate Virgin of Sospel'. It is by the artist François Brea, of a family of artists from Nice, from the 15th or early 16th century.
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.