At the bottom of the hill on which the old town is located, separated by strongholds that were built under Venetian rule, unfolds the modern-looking urban centre. The marked division between the ?upper city' and the ?lower city' has always characterised the city's structure. The ?upper city' is the most interesting from an artistic point of view. As you walk along the cobbled lanes you will discover Vecchia Square and the Palace of Reason. Next to it, Duomo Square is surrounded by the most remarkable religious buildings in the city, with the Basilica of Saint Mary Major, Colleoni Chapel, the baptistery and the cathedral. Each is a testament to the city's history and constitutes evidence of an artistic fervour which continued to animate the cultural life of the city throughout the Middle Ages and the Renaissance. For centuries Bergamo was under Venetian rule and was influenced by 'La Serenissima', particularly when it came to painting. We are reminded, in particular, of the Martyrdom of Saint John by Tiepolo, which is kept in the cathedral.