Things to do in Italy, no research required

Ancient sites, Renaissance galleries, an aperitivo hour and a bar culture built on small plates and short walks. Four Italian cities splitting the work between them, well over a thousand pins in total. Restaurants and museums run deep in each, enough to plan meals and gallery days city by city rather than improvising at 7pm on a dying battery. Built for the route people actually take, which spends a lot of its time on trains and none of it wanting to manage four separate map files.