Picture shwos the ruined church of the uninhabited village of Sarnago, in the northern Spanish province of Soria on February 28, 2017. Rural emigration in many areas of Castile region – where the village of Sarnago is located – as well as in Aragon and Extremadura regions was so massive in the 50s, 60s and 70s that their population density now rounds two inhabitants per square kilometer. A similar level to extreme regions such as Lapland or Siberia. /RSS/ AFP PHOTO / CESAR MANSO