Winneburg Castle ruins stands about 80 metres above the Endert valley. It was built around 1240 and was the property of the family of Wunnenberg until the lineage died out in 1637. Around the middle of the 17th century the castle passed into the possession of the Metternich family.
Having been blown up by the French in 1689, the gate porch and the front courtyard are still preserved from the 13th century. In addition, the round keep and two half-towers with the almost 20 metre long great hall are still almost fully preserved. Apart from these there are the remains of housing and outbuildings from the 15th century. Today the castle belongs to the town of Cochem.
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.