Treviso is a good starting point to move around in the Veneto region,  just 25 minutes by train from beautiful Venezia. Return ticket costs 4.10 euro. Use Treviso as starting point to go to Venice, which is beautiful but overcrowded and stressing and very touristy.

Treviso offers very good deals for food and accomodation. The only setback is that many people there may not speak English.  BUT,  if you know few words if italian you will be fine.
 
If you love nature and green, visit the Restera. It is an ancient track near river Sile. It is a very nice walk near the water, full of swan and fish.