The Castillo de Calatalifa represents an extraordinary example of 10th-century Andalusian culture in the Madrid region, commissioned by Caliph Abderramán III. Located in the southwest of Villaviciosa de Odón, this archaeological site was occupied from the 9th century until the Castilian conquest, with its name meaning 'Castle of the Caliph.' The settlement served not merely as a fortress but as a military administrative center with horticultural agriculture and livestock herding, strategically positioned on the Guadarrama valley communication axis. Declared a Cultural Interest Archaeological Zone, the site preserves notable cisterns from its original Andalusian occupation period.