Italy is the world's largest producer of wine by volume and is also known for producing high-quality wine. The main wine-producing regions in the country include Tuscany, Veneto, and Piedmont. Tuscany is particularly famous for its wines, with the Maremma and Bolgheri regions producing the French grape variety called Sassicaia, which is still used today to produce "super Tuscan" wines. These wines are unique in that they are not made from Italian grapes or a mixture of other grapes.