bays and surrounded with an ambulatory and five radiating chapels. The vault of the apse is pierced by round windows, forming a clerestory. The choir displays a surprising exuberance in this Romanesque setting. An enormous baldachin, with a sumptuous decorated statue of Saint James from the 13th century, rises above the main altar. The pilgrims can kiss the saint's mantle via a narrow passage behind the altar. In the choir aisle the beautiful lattice work and the vault of the Mondragon chapel (1521) stand out. The radiating chapels constitute a museum of paintings, retables, reliquaries and sculptures, accumulated throughout the centuries. In the Chapel of the Reliquary () is a gold crucifix, dated 874, containing an alleged piece of the True Cross. Crypt The crypt, below the main altar, shows the substructure of the 9th-century church. This was the final destination of the pilgrims. The crypt houses the relics of Saint James and two of his disciples: Saint Theodorus and Saint Athanasius. The silver reliquary (by José Losada, 1886) was put in the crypt at the end of the 19th century, after authentication of the relics by Pope Leo XIII in 1884. Throughout the course of time, the burial place of the saint had been almost forgotten. Because of regular Dutch and English incursions, the relics had been transferred in 1589 from their place under the main altar to a safer place. They were rediscovered in January 1879. Botafumeiro A dome above the crossing contains the pulley mechanism to swing the "Botafumeiro", which is a famous thurible found in this church. It was created by the goldsmith José Losada in 1851. The Santiago de Compostela Botafumeiro is the largest censer in the world, weighing and measuring in height. It is normally on exhibition in the library of the cathedral, but during certain important religious holidays it is attached to the pulley mechanism, filled with of charcoal and incense. In the Jubilee Years (whenever St James's Day falls on a Sunday) the Botafumeiro is also used in all the Pilgrims' Masses. Eight red-robed tiraboleiros pull the ropes and bring it into a swinging motion almost to the roof of the transept, reaching speeds of and dispensing thick clouds of incense. Other burials Alfonso Daniel Rodríguez Castelao, at the Panteón de Galegos Ilustres ("Pantheon of Illustrious Galicians"), Bonaval Fructuosus of Braga Rosalía de Castro Fernando Pérez de Traba Ferdinand II of León