The Giralda is the bell tower of the Seville Cathedral in Seville, Spain. It was originally built as a minaret during the Moorish period, during the reign of the Almohad dynasty with a Renaissance style top subsequently added by Spanish conquistadors after the expulsion of the Muslims from the area. The Giralda was registered in 1987 as a World Heritage Site by UNESCO along with the Alcazar and the General Archive of the Indies. The tower is 104.1 m in height and remains one of the most important symbols of the city, as it has been since medieval times.