Period of construction: 11th – 12th century
Architectural style: Romanesque art
Curiosities: the big dome built by Guercino is entirely visitable, at an arm-distance form the frescoes of the dome and at a 40m-height from the ground.
It was built during the period of the big Medieval factories, like the ones of Parma Cathedral and Modena Cathedral, and it represents one of the most important religious monuments of Romanesque architecture in Italy. Here, the 13th-century art perfectly connects with the Baroque style of the painted decorations, which find the culmination of expression in the great dome.