Peñafiel Castle started construction in the 10th century, although its current appearance is the product of important interventions that took place especially during the 14th and 15th centuries. This medieval fortress was declared a National Monument in 1917 and has now become an emblem for wine tourism in the Ribera del Duero. It is located on a high oblong hill at whose feet the Duratón and Duero flow, and is adapted to the topographical forms that provoke so many metaphors, from that of a ship to that of a serpent, with its imposing silhouette dominating the population and the territory, which gave its name to the town of Peñafideli or Peñafalcón.