We are taking a short trip from Paris to Rome and Venice, then leaving for home from Milan. I'm wondering if I should plan on 1 full day in Venice or 2. We have very little time in Italy and I want to spend our time wisely.

I have 2 full days booked in Rome, then heading to Venice on the last evening fast train for 2 full days in Venice. Then we will head to Milan by fast train first thing in the morning of our departure (plane leaves at 4 pm).

As I'm reading about must-see Venice sights, there doesn't seem to be a lot to do there. Is that accurate or am I missing something? St. Mark's Basilica, The Doge's Palace, take a gondola ride, anything else? Is Murano Island worth the day trip? Should I add a day to Rome and just do 1 day in Venice?

I want to see and experience Venice and the canals but there must be more to Venice than what I've been reading.