Ever wondered why you have as wide nose, small jaw or such long legs, beyond the close family resemblance? Or from which that capacity to retain information or the ability to design objects and as creative elements? Of 21st century man has something in common with which dwelt this earth a million years ago? The answers to these questions us back to our ancestors, to whom we can study through the human fossils found in numerous enclaves. The sierra Atapuerca Burgos is one of them, especially privileged because it allows to study human over a million years of evolution and provides data on the first Europeans, which makes this site a unique place in the world. The discoveries of Atapuerca Atapuerca is a small mountain range that extends from Northwest to Southeast in the Valley of Arlanzon River, just 15 kilometers east of the city of Burgos. The closest villages are Ibeas de Juarros, to about 4 kilometres to the Southwest, and Atapuerca, just on the Northeast slope of the Sierra and that gives it its name. As it is often the case with the prehistoric sites, the discovery of what is today known as Atapuerca was due to random. In this case, due to the construction, in 1901, of a mining railroad, which supplied the first Basque iron iron ore, and coal and whose works would leave visible the deposits that we know today. Although important archaeological discoveries have been made since 1910, it wasn’t until 1992 when Atapuerca would begin to acquire fame by which it is known today. In the same year is said to be, known as Sima of bones, various remains of incalculable value, among them, the first complete skull of the Middle Pleistocene (780,000 years and 127,000 years ago), the more whole and better preserved of all those found in the world, belonging to a boy of barely fourteen years.