The old town of Drežnik is mentioned in the historic sources back in the 12th century. Its history has been marked by wars and its different rulers. The historic events in the area have mostly been marked by constant wars, which is also the reason that it did not develop as a trading place or a settlement but rather as a defence fortress. After 1830, the Austrian monarch sold the fortress to a private trader, who started demolishing the walls and selling stone as construction material. The defence tower has been renovated and from there the visitors can enjoy in the view over the canyon of the Korana river and the surrounding mountains and learn something on the history of this always dynamic border region.
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.