I just about have my September northern Italy itinerary figured out. I have one day at the end of my trip to plan a day trip from Venice. I'm considering Treviso OR Castelfranco Veneto. Which would you choose? I don't know if I have the energy to do both in one day.
Planning note: I visited Padua a couple years ago. And am staying in Verona this trip for three nights with a day trip to Vicenza. This is my fourth trip to Venice for a total of six nights there this trip; two nights at the beginning and four at the end.
Grazie!