Hornberg Castle is a historic fortification located in the Black Forest region of southwestern Germany. The castle, which is situated on a hill above the town of Hornberg, dates back to the 13th century and has played a significant role in the history of the region.
The castle was first built in the early 13th century as a defensive fortress, and it was used to control the surrounding territory and protect the people of the region from invaders. Over the centuries, the castle was expanded and renovated, and it eventually became a residence for the local nobles.
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.