Champagne and Prosecco are both sparkling wines, but they are produced in different regions and have different methods of production. Champagne is produced in the Champagne region of France and is made using the traditional method, which involves a second fermentation in the bottle. Prosecco, on the other hand, is produced in the Veneto region of Italy and is made using the Charmat method, which involves a second fermentation in large stainless steel tanks. The flavor profile of the two wines is also different, with Champagne having a more complex, yeasty flavor and Prosecco being lighter and fruitier.