 The Diocese of Padua covers the most part of the province, out of a main part of "Alta Pianura"; instead it includes areas from the surrounding provinces.Padua is home to some masterpieces from Medieval and Renaissance art and architecture, while the towns of Cittadella and Montagnana are known for the well preserved Medieval city walls.There are numerous villas in the countryside, a few of them from Palladio, the main ones being Villa Contarini (in Piazzola sul Brenta) and Villa Barbarigo (in Valsanzibio).