The Basilica of Santa Maria Maggiore di Siponto is a church in Manfredonia, Apulia. The church was completed around 1117, when it was consecrated (perhaps in place of a pre-existing 6th century Palaeo-Christian edifice) and the relics of Laurence of Siponto where put under the high altar.
The building has an unusual square plan, consisting of two independent churches (one, underground, is the current crypt), two apses on the southern and eastern walls, and a medieval monumental portal with two side lions, facing the road entering in Manfredonia.
The interior, with four pillars, dates to the 11th century, and once housed the icon of the Holy Virgin of Siponto, dated to the 7th century. The icon is now in the Manfredonia Cathedral, as well as the polychrome wood Byzantine statue of La Sipontina (6th century) The underground church dates to the early Middle Ages, and was replaced by the upper one after having been destroyed by an earthquake.
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.