The National Historical Museum in Sofia is Bulgaria's largest museum. It was founded in 1973. A new representative exhibition was opened in the building of the Court of Justice on 2 March 1984, to commemorate the 13th centenary of the Bulgarian state. The museum was moved in 2000 to one of the major buildings in the complex serving as official residence of the President, Vice President and Government of the Republic of Bulgaria., and currently contains over 650,000 objects connected to archaeology, fine arts, history and ethnography, although only 10% of them are permanently exhibited.
The museum includes a cloakroom, cafe, library and souvenir shop. It undertakes professional conservation and restoration of historical monuments, authenticity investigations and expert valuation. Its collections comprise materials dating from prehistoric ages till the present.
Major excavated exhibits include Valchitran Treasure, Dabene Treasure, Rogozen Treasure (part) and Panagyurishte Treasure (either replicas or the real objects).
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.