column piers of the second level colonnade of palazzo ducale in venice

column arch architecture sculpture statue monument temple art iron carving landmark facade palace building cathedral basilica piers second level colonnade shadows gothic quaterfoils palazzo ducale venice veneto italy famous doge architercural details arch architecture art building column columns culture decor decoration design destination detail details doge ducale europe european exterior facade famous gothic heritage historic historical history italian italy landmark light marble medieval monument old palace palazzo pattern piazza pier pillar quaterfoil shadow style tourism town travel typical venetian venezia