We all know that Prosecco refers to value-driven sparkling wine. What’s notable here is “Conegliano Valdobbiadene Superiore,” which refers to the specific subregion where Cinzia Sommariva farms her Glera—the ancestral name for the Prosecco grape. Steep hillsides rise up out of this stretch of northeastern Italy, creating a landscape so spectacular that it has been granted UNESCO World Heritage status. This is the best terroir for Prosecco, and Sommariva farms and vinifies it beautifully.