The Archaeological Site of Atapuerca is located near the city of Burgos. The property contains a rich fossil record of the earliest human beings in Europe, from nearly one million years ago and extending into the Common Era. It constitutes an exceptional scientific reserve that provides priceless information about the appearance and way of life of these remote human ancestors.
The Sierra de Atapuerca sites provide unique testimony of the origin and evolution both of the existing human civilization and of other cultures that have disappeared. The evolutionary line or lines from the African ancestors of modern humankind are documented in these sites. The earliest and most abundant evidence of humankind in Europe is found in the Sierra de Atapuerca. The sites constitute an exceptional example of continuous human occupation, due to their special ecosystems and their geographical location. The fossil remains in the Sierra de Atapuerca are an invaluable reserve of information about the physical nature and the way of life of the earliest human communities in Europe. In addition, painted and engraved panels have been recorded, with geometrical motifs, hunting scenes, and anthropomorphic and zoomorphic figures.
The deposits of the property are dated from the Pleistocene with the deposits of the Trinchera del Ferrocarril, (Gran Dolina, Galería-Tres Simas, Sima del Elefante) and the Cueva Mayor (Sima de los Huesos), and from the Holocene period (El Portalón de Cueva Mayor, Galería del Sílex, Cueva del Silo, Cueva del Mirador). There are also archaeological sites of other periods from Prehistoric Times (Paleolithic, Neolithic, Bronze Age, Iron Age) to the Middle Ages and later.
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.