Franciscan monastery St. Catharine, in Kreševo, Bosnia and Herzegovina, has been established between 1521 and 1524. The monastery has been serving its community for centuries, and the Catholic traditions here are very strong.
The monastery has a rustic museum, library and gallery. The monastery as an architectural ensemble, together with a number of its movable property and items, is being included into the List of National Monuments of Bosnia and Herzegovina since 2003.
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.