The National Archaeological Museum of Spain was founded in 1867 by a Royal Decree of Isabella II as a depository for numismatic, archaeological, ethnographical and decorative art collections of the Spanish monarchs.
The museum was originally located in the Embajadores district of Madrid. In 1895, it moved to a building designed specifically to house it, a neoclassical design by architect Francisco Jareño, built from 1866 to 1892. In 1968, renovation and extension works considerably increased its area. The remodelled museum concentrates on its core archaeological role, rather than decorative arts.
The collection includes, among others, Prehistoric, Egyptian, Celtic, Iberian, Greek and Roman antiquities and medieval (Visigothic, Islamic Spanish and Christian) 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.