Built between the 14C and 16C, the cathedral has all the features of the high-Gothic style. Inside, take time to admire the altarpiece at the high altar, the chapel, Capilla de Nuestra Señora del Rey Casto, and the cross-ribbed cloister. When you reach the reconstructed Cámara Santa, built in the reign of Alfonso II in the 9C, you will find an astonishing collection of column-statues (12C), and finally the treasury, with remarkably fine gold and silver work (9C-12C).