Arcos de la Frontera is dramatically placed on top of a rocky limestone ridge in Cadiz province. The stone castle walls and the whitewashed homes stand on a sheer cliff face above the River Guadalete below and spread down the hillside. Due to its dramatic location and beautiful architecture, the pueblo blanco was in 1962 declared a National Historic-Artistic Monument. A visit to the winding, cobblestoned streets of its Old Town and the Castillo de los Arcos is a must.