Yes. The Prosecco Road around Conegliano and Valdobbiadene is roughly 35-45 km (22-28 miles) away, usually 45-60 minutes each way depending on the route. Expect rolling vineyard hills, hilltop villages, and wine tastings, best explored at a relaxed pace rather than on a group bus schedule.
Treviso Airport is nearby, about 13 km (8 miles) away, roughly 15-20 minutes' drive. Venice Marco Polo Airport is about 18 km (11 miles) away, generally 25-35 minutes depending on traffic. Being dropped off directly at either terminal means no shuttle transfers or working around public transport timetables after a flight.
Venice is about 20 km (12 miles) away, generally 30-45 minutes by private transfer depending on traffic and drop-off point, versus 45-60 minutes or more by train or bus with connections. Spend the day around St. Mark's Square, the Grand Canal, the Doge's Palace, and the quieter canals away from the main routes.
Yes, and it's much closer, about 8 km (5 miles) away, roughly 10-15 minutes' drive. Known as "little Venice" for its own canals and porticoed streets, Treviso is easy to fold into a half day before or after Venice, with a fraction of the crowds.
The Veneto plain around Preganziol holds several historic villas beyond Villa Franchetti, easy to combine with a countryside route. The Dolomites are a bigger undertaking, around 100 km (62 miles) or more and typically 2 hours or longer each way, so this suits an early-start day for travelers mainly chasing mountain scenery.
Preganziol is a quiet town along the old Treviso-Venice road, home to the historic Villa Albrizzi Franchetti but otherwise light on major sights. That makes it a calm, uncrowded alternative to staying in central Venice, while keeping Venice, Treviso, and the Prosecco hills all within easy reach for day trips.