Castell del Real de Vilaragut dominates the Turia plain from its strategic perch at 574 metres altitude between Marines and Olocau in Valencia's Campo de Turia region. This 11th-century Islamic fortress, referenced in The Poem of the Cid as Hisn al Uqab, stands as a testament to Valencia's medieval frontier history. The castle once protected the northern approaches to Valencia alongside Chelva and Morvedre, resisting Aragon's expansion until finally falling to Jaime I's conquest. Its irregular perimeter, two-enclosure design with cistern, and visual communication network with surrounding towers reflect sophisticated medieval defensive planning and the region's complex Christian-Muslim territorial dynamics.