Hrubý Rohozec is a castle in Turnov. The original structure was connected to a polygonal tower by a defensive wall. Its purpose, in the 14th century, was to monitor the trade route running below it. Between the two parts of the castle Jan von Šelmberk, and later Konrad Kraiger Kraigk, built Gothic palaces. During the Renaissance the Wartenberg family rebuilt the complex in the style of a chateaux.
Albrecht von Wallenstein bought it in 1621 followed by the noble family Desfours, who held it until 1945. After 1822 the castle was upgraded on the basis of plans by the architect Jan F. Joendl. The castle's library, dining room, bedroom and a blue room are open to the public and display their original furnishings.
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.