Castles, palaces and mansions Castello di Toppo The Castle of Toppo was built during the Lombard era for reasons of defense. In 1220 the building was purchased by the Ragogna family. Due to a strong earthquake in 1348, the castle was seriously damaged. The double walls are still visible today. Inside there are paintings by the School of Gian Battista Pittoni and a 15th century statue depicting Saint Lucia.