Duomo and Baptistery of St John, Campo dei Miracoli, Pisa, seen across the rooftops from the campanile (Leaning Tower)

NOTES: The Cathedral, the largest Romanesque church in Italy, was built between 1063 and 1118. The adjacent Baptistery of St John, replaced an older baptistery and was begun in Romanesque style in 1152 under Diotisalvi. The upper part underwent a Gothic transformation by Nicola Pisano and his son, Giovanni, in 1277-1297. The dome was added by Cellino di Nese in the 1300s and the building was finally completed in 1363. Construction on the detached bell tower began in 1173 under the direction of Diotisalvi. The tower began to sink and lean after completion of the third storey in 1178. Building resumed in1272 under Giovanni di Simone, architect of the Campo Santo, but was interrupted again in 1284 on reaching the seventh storey, owing to further leaning. The belfry was added by Tommano Simone in 1350.