Cuéllar Castle - Credit: Wikimedia Commons
Cuéllar Castle or The Castle of the Dukes of Alburquerque is the most emblematic monument in the town of Cuéllar, located in the province of Segovia, autonomous community of Castile and León, in Spain. It was declared Bien de Interés Cultural (Property of Cultural Interest) on 3 June 1931. Can be looked up online on the data base of protected buildings of the Ministry of Culture by writing in the field "Bien" the name of this monument. Read more on Wikipedia
Source: en.wikipedia.org