The predecessor of the present Tüschenbroich Castle was built around 800. It stood on the large round motte in the present castle lake. This medieval castle however was completely destroyed during the Thirty Years' War (1618–1648).
Between the 17th and the 18th century the present castle was built on the site of the older outer ward.
In 1876 the southern tower and part of the main building collapsed during a storm. The remaining part was given a new facade and the collapsed part was never rebuilt. Of that southern tower only a ruin remains.
At present Tüschenbroich Castle is privately inhabited and can thus not be visited.
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.