Tower of los Bocanegras Monument · Valle de Sedano, Páramos, Burgos Image of Valle de Sedano, not of the place itself. A 14th-century castle raised at Gredilla de Sedano by a family of Italian origin settled in Castile; it was declared a protected cultural asset in 1949 and still stands out above the village. Photo: Jtspotau (CC BY 3.0) What to see and do in Valle de Sedano