Huis Doorn is a manor house and national museum displaying the early 20th-century interior from the time when former German Emperor Wilhelm II lived in the house. The first house was built in the 9th century, but it was destroyed and rebuilt in the 14th century. It was again rebuilt in the late 18th century in a conservative manner and, in the mid-19th century, a surrounding park was laid out as an English landscape garden.
The gardens were also created in the 19th century. After World War I, Wilhelm II bought house, where he lived in exile from 1920 until his death in 1941. He is buried in a mausoleum in the gardens. After the German occupation in World War II, the house was seized by the Dutch government as hostile property.
Huis Doorn is now a national museum and a national heritage site. The interior of the house has not been changed since Wilhelm II died. Every year in June, German monarchists come to Doorn to pay their respects to the emperor.
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.