Next to the cathedral there is the Cathedrals museum. A Museum that comprises the long history of the 'Duomo', with a great Lombard sculpture collection from the 14th to the 20th century. The Museums main works are: The early Gothic Nordic Giant, Giorgio Solaris Saint George sculpture (a Renaissance work), some interesting 16th century works and the big Crespis Tempera (1628), among others.
Well now take a look at the square in front of the Cathedrals main facade ... the 'Piazza Duomo'.