The pleasant city of Treviso is easily reached by train from Venice. It’s well worth a visit for a few hours (at least) of exploration in the historic centre.
As you walk, you’ll see a number of canals flowing through Treviso, with grassy banks and weeping willows creating a most pleasant atmosphere, especially on warm days.
Aside from being a source of water for the inhabitants in the days when they were often under attack from enemies, the waters of the canals provided the driving force for many water mills which ground the grain for the essential daily bread (and pasta, I guess).
You’ll find a few of these ancient water wheels still quietly turning; I find them so very peaceful and picturesque.