Basilica of the Assumption of the Blessed Virgin Mary in Krzeszów is a Roman Catholic church and abbey of the Order of Saint Benedict in Krzeszów, Lower Silesian Voivodeship. Built around 1728-1735, it is a notable baroque church in Silesia, with the art of Ferdinand Brokoff (sculptor) and Michael Willmann (painter). It is also one of the shrines to the Virgin Mary, with a 13th old painting. In one of the chapels there is a mausoleum to Silesian Piasts: Bolko I the Strict and Bolko II the Small.
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.