The Noeddale Necropolis is a pre-Nuragic complex, situated on the outskirts of the town of Ossi, facing the Sae valley. It is composed of six hypogeic tombs, among the greatest examples of funerary architecture, of the Ozieri culture. Among these the so-called 'Tomba della Casa', one of the most complex Domus de Janas in Sardinia, with its 11 rooms preceded by a dromos (an entrance passage); The name “della casa” (literally of the house) comes from the internal wall decorations, which reproduce the roofs of homes of that time, with a double-sloped ceiling typical of the recent Neolithic. It is also worth mentioning the so-called 'Tomba delle Spirali', with six rooms, characterised by the presence of typical decorative elements of Sardinian funerary art: taurine protomes, false doors, and spiral motifs.
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.