Altamira Cave, Torrelavega

This prehistoric site in the province of Santander was inhabited in the Aurignacian period and then in the Solutrean and Magdalenian periods. Most of the stone implements and, in particular, the famous paintings in the great chamber (in ochre, red and black and depicting a variety of wild animals such as bison, horses, fawns and wild boar) date from this latter period.