Dynge Castle, also Dyngehus as it was once called, was a Norwegian fortified castle in use from approximately 1250 and onwards towards the beginning of the 16th century, when it burnt down. Located in central Bohuslän, since then passed into Swedish possession, the castle was mentioned several times in Norwegian records. The site was excavated 1912-1913 by Wilhelm Berg, who had also excavated the contemporary and largely similar castle Ragnhildsholmen Castle during the 1880s, and Olsborg Castle. Since then, the site has had no closer examination by archaeologists.
The castle was in shape similar to a motte-and-bailey, with a stone keep surrounded by a small moat, standing on top of a cliff overlooking Gullmarsfjorden. The foundations of the central keep's walls remain clearly visible, as does the moat. It is one of few remaining medieval structures in Uddevalla Municipality, alongside Dragsmark Abbey and Bokenäs Old Church.
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.