The castle that once belonged to Ferdinand II of Aragon and Isabella I of Castile, known as the Catholic Monarchs, is now for sale for 15 million. It boasts a spectacular setting in Spain’s medieval city of Segovia, an ancient settlement which was declared a UNESCO World Heritage Site in 1985. The property covers an area of 79 hectares and measures 5500 sqm. Its five floors hold 21 rooms, all with private bathroom, the Royal Hall for 300 people; an historic library and a large patio. This includes the 450 sqm. structure of a former mill, in perfect condition and now used as a dwelling, along with a pyramidal house, a chapel, and numerous pools. This castle is a perfect combination of the neo-classical and gothic-mudejar styles; however, its exact origin is unknown. For some historians, the property was built in the eighth century by Abd-al Rahman I; others say it was the work of Almanzor in the tenth century.