Castle Chipiona in Cádiz stands as an ancient fortress with uncertain origins, attributed to either the 13th century when Alfonso X fortified it during the reconquest of Cádiz, or potentially to the 15th century, with documented renovation in 1527. The castle held diverse roles throughout its history, serving as a parish residence in the 17th century, local prison in the early 18th century, and hotel until 1989. Its prestigious guests included royal figures such as Infante Carlos of Spain, Princess Louise of Orleáns, and María de las Mercedes, mother of King Juan Carlos I. Following restoration by the Chipiona City Council after purchase in 2000, it now houses the Cadiz and the New World Interpretation Centre, offering visitors insight into maritime and colonial history linked to the castle's strategic coastal position.