Ružica Castle is large ruined castle in Virovitica-Podravina County, Croatia. Since the origin of the medieval structure remains unknown, it has become the stuff of legend over the years. It is one of the most picture-perfect places in the country and a must-see for those in search of hidden gems that are far from mass tourism.
The first document of Ružica castle dates from 1357. It lost its military purpose after Turkish occupation in 1543 and was ruined.
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.