Andalucia is known for its Moorish and Moorish influenced architecture. Notable examples include the Alhambra in Granada, the Mezquita in Córdoba, the Torre del Oro and Giralda towers. Other architectural styles include Mozarabic, such as the Reales Alcázares in Seville, and the Alcazaba in Málaga. Archaeological ruins include Medina Azahara, near Córdoba, and the Roman city of Itálica, near Seville, and at Palos de la Frontera, in the province of Huelva, the Andalusian port from which Columbus's expedition of discovery was launched.