two depicting St. Peter and St. Paul, now in the church's chapter house. The church has two bell towers. The oldest one, named after Charlemagne, is the surviving one of the two originally flanking the first Romanesque church (the other ceased to exist in the 14th century). Begun in the early 11th century, it has a square plan with six levels separated by friezes with Lombard bands and double mullioned windows. The new bell tower (70 m high) started in 1590 and completed (with a modified design) in the 18th century, has an octagonal plan. It houses six bells, the oldest one dating to 1574. Interior The interior's single nave is surmounted by cross vaults, supported by Gothic buttresses. The side walls feature a triforium with pointed-arch stained glass windows. The apse is separated from the nave by a wall reaching to the vaulted ceiling and perforated with openings, namely one enormous ogive or pointed arch in the center framing the high altar, flanked by two smaller pointed arches as entrances to the ambulatory at the apse. The upper reaches of the wall bear a large central rose window (1705, dedicated to the Archangel St. Michael) flanked by two smaller ones. The polygonal apse is in turn flanked by two short galleries, with ogive or pointed arches as entrances, which correspond to the original aisles of the Romanesque building and are located at the starting point of the ambulatory. The latter is divided by piers aligned with the rays of the apse's trapezoidal vaults, forming ten radial chapels. The high altar, in white marble, dates to the 11th century. Other artworks include the Gothic sarcophagus of Berenguer d'Anglesola (died 1418), by Pere Oller, in the chapel of Isabella of Portugal, the Chapel of All Saints (1376) Romanesque cloister The Romanesque cloister is notable, featuring a series of columns with sculpted capitals: they depict fantastic figures and animals, and vegetable motifs. The frieze has instead scenes from the New Testament. Among the sculptors who worked at the cloister is Arnau Cadell, also author of the cloister of the Monastery of Sant Cugat. Also in the cloister is the Chapel of Our Lady of Gràcia i de Bell-Ull, which was originally a gate to the cloister, renovated in the Gothic period; its tympanum has an image of the Virgin by Master Bartomeu (13th century). The cloister's galleries are home to numerous tombs