St. Nicholas church from the mid-14th century dominates the Prešov cityscape with tall tower reconstructed in Gothic style. The construction of the church was finished in 1515. Despite of repeated modifications and fire in 1788 many Gothic elements have been preserved in its architecture. The Gothic and Baroque styles alternate on the main altar of St Nicholas from 1696. Statues of angels from the beginning of the 16th century were made in workshop of Master Pavol of Levoča.
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.