Thunstetten castle manor was built as a country manor house in the Bernese Oberaargau in 1711 to 1713 or 1713 to 1715. The castle was built for the Landvogt Hieronymus von Erlach following plans by the architect Joseph Abeille. The castle remained with the Erlach family until 1746. From 1746 until 1971 it had numerous owners. In 1971 the Stiftung Schloss Thunstetten (Thunstetten Castle Foundation) took over management of the building and grounds. Today rooms in the castle or the entire castle can be rented for events or meetings.
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.