The Church of the Exaltation of the Holy Cross is located on the site of an original Gothic church from the 13th century. A vestibule with circular vaulting was preserved from a building constructed in 1458, along with the bottom part of the tower. After a fire in 1635 the church was reconstructed in Baroque style (D. Rossi and D. Orsi) and also from 1746-1755 by J.K. Kosh. The church is used for religious purposes. A large reconstruction of the truss and facade was done by the Municipal Office in 1995.
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.