San Gianuario is a Roman Catholic church in Marsico Nuovo, Basilicata. It is cited as the co-cathedral of the town along with the church of San Giorgio.
The church is thought to have been erected at the site of a pagan Serapeum, and that some of the capitals of the columns are spolia from such a temple. The site had a pre-Christian cemetery. Documents maintain the Abbey of Santo Stefano was erected here under the patronage of a Count Osmondo during the rule of the Norman Robert Guiscard in the region. The abbey putatively held the relics of San Gianuario, a 4th-century bishop martyred nearby by Diocletian. The abbey however fell into disuse and ruin, leaving behind only this church. The structure has been refurbished over the centuries.
The church houses a number of artworks including a detached fresco derived from the church of San Francesco. The church has paintings by Simonelli, Feliciano Mangieri and Nicola Peccheneda. A stone portal, attributed to Melchiorre da Montalbano, consists of flanking column-pilasters with bas-reliefs of bishops. In a niche above the portal is a half-figure bust of San Stefano. The bronze doors (1699) are by Antonio Masini.
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.