The San Giovanni degli Eremiti church dates back to the 6th century. After the establishment of the Norman domination of southern Italy, it was returned to the Christians by Roger II of Sicily who, around 1136, entrusted it to the Benedictine monks of Saint William of Vercelli.
The church was extensively modified during the following centuries. A restoration held around 1880 attempted to restore its original medieval appearance.
The church is notable for its brilliant red domes, which show clearly the persistence of Arab influences in Sicily at the time of its reconstruction in the 12th century, the Arab-Norman culture. However, the red colour of the domes are not original, as they were restored in the present way at the end of the nineteenth century by an architect who found pieces of red plaster on the domes and therefore decided to paint all the domes in red.
The church lies with a flank on a square construction. The church is on the Latin Cross plan with a nave and two aisles and three apses. Each of the square spans is surmounted by a dome. The presbytery, ending with a niche, has also a dome.
The cloister, enriched by a luxurious garden, is the best preserved part of the ancient monastery. It has notable small double columns with capitals decorated by vegetable motifs, which support ogival arches. It also includes an Arab cistern.
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.