Collaborative application to create a catalog of geolocated positions of those vestiges of the Spanish civil war that are still visible. From constructions such as forts to wounds on the facades and the terrain as a result of the confrontations. There is also a catalog of geolocated photographs of the Spanish Civil War to compare with the current moment. The app is completed by a street map, a layer of tributes, another with vestiges of the Second Republic and another with vestiges of the postwar period and the dictatorship.