metres. The nave and the aisles are covered by cross vaults whose ribs are supported by cruciform pilasters annexed to columns; the capitals of the latter feature Moorish motifs. The windows are of two main type: Romanesque, with archivolts, and Gothic, with stained glasses. The octagonal tower-dome was built in the mid-13th century, and is cross-vaulted. The presbytery and the apse have kept a notable Romanesque pavement, formed by plaques of stone and marble of different colours in geometrical patterns. The stalls of the choir were made by the Saragossan artist Francisco Gomar in the 15th century, in oak wood. The western side was dismantled and is now in a museum. The organ is from the late 16th century, designed by the architect Jaume Amigó. Chapels The church includes the following chapels, starting from to the right of the entrance towards the choir: Chapel of the Virgin Mary (1520). The altarpiece, coming from the parish church of Solivella, was executed by Mateu Ortoneda in the early 15th century. Chapel of the Virgin of Montserrat, with an altarpiece from the church of Santes Creus, begun by Guerau Gener and finished by Lluís Borrassà in the early 15th century. Chapel of the Conception. in Baroque style (1674), with works by sculptor Francesc Grau and painter Francesc Tramulles Roig. Chapel of St. Fructuous and St. John, designed in Renaissance style by Pere Blai Chapel of the Holy Sepulchre (1494), housing a 4th-century AD Roman sarcophagus with Gothic additions (Gothic made by an anonymous Valencian sculptor) Chapel of the Holiest (1592), in the right transept. It features a large triumphal arch as entrance, an octagonal dome, three chapels with semicircular arches and works from Jaume Amigó, Pere Blai and Bernat Càceres Chapel of St. Barbara (14th century) Chapel of St. Mary of the Taylors, built before 1350 and later renovated. It has a hexagonal plan and features an extraordinary polychrome stone altarpiece (1368) by Aloi de Montbrai. Major Chapel, featuring a notable Gothic sculpture by Pere Johan (1426–1434) in polychrome alabaster Chapel of St. Oleguer Chapel of St. Luke Chapel of St. Thomas (16th century) Chapel of the Christ the Healer (15/16th century) Chapel of the Rosary (16th century) Chapel of the Presentation Chapel of St. Francis (1584), designed by Jaume Amigó Chapel of St. Tecla, patroness of Tarragona, built in 1777 in late Baroque style over what was once the baptistery Chapel of