Eutin Castle was originally a four-winged palace originating from a medieval castle and was expanded over several centuries into a residence. The castle originally belonged to the Lübeck prince-bishops, later it became the summer residence of the Dukes of Oldenburg. The castle was regularly occupied until the 20th century and most of the interior has survived to the present-day. Today the castle houses a museum and is open to the public in summer. It is now owned by a family foundation headed by Anton-Günther, Duke of Oldenburg. The former Baroque garden was converted during the 18th and 19th century to a landscaped park; this is the venue for the Eutin festivals.
A small, late Baroque hunting lodge on the Ukleisee belongs to Eutin Castle. The lodge was built in 1776 at some distance from the main castle at the behest of Frederick Augustus I of Saxony in order to provide a single-storey pavilion for hunting parties and guests attending special occasions.
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.