I will be in Genoa on business for 4 days in a few weeks, flying in/out of Milan and will have a rental car. Tours of the sights in Genoa is already planned.
I will have 2 free days in the Genoa - Milan area. I have read about things to do in Milan. What about things to do/see within an hour or two of Milan, especially on a drive from Genoa, since I will have a car?