Santa Cristina is a Baroque style, Roman Catholic church located in Turin. It mirrors the adjacent church of San Carlo and faces the Piazza San Carlo. The arrangement recalls the twin churches (chiese gemelle) of Santa Maria dei Miracoli (1681) and Santa Maria in Montesanto (1679) facing the Piazza del Popolo in Rome.
The original layout was designed in 1620 by the architect Carlo di Castellamonte, and construction pursued until 1639. The project was only completed between 1715 and 1718, under the guidance of Filippo Juvarra, including the facade elaborately decorated with ovals and details with statues of saints and allegories of the virtues. The adjacent convent housed nuns of the Order of the Discalced Carmelites. In 1802, the order was suppressed in Turin by Napoleonic forces. The interiors were modified in the 19th-century and after the bombardments of World War II.
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.