The world famous Champagne is produced in the small Champagne-Ardennes region. In fact, sparkling wine can only be regarded as Champagne if it's produced in this region. Someone might get confused and call a Catalan cava Champagne. Despite both being sparkling wines and composed of the same grape varieties, one would be Champagne and the other would remain Cava. One of the most famous wineries is probably "Moet et Chandon". This "house" has its warehouses, offices and shop in the town of Epernay, in the aforementioned region. Although it is the best-selling Champagne (nationally and internationally) something not many people know is that Moet et Chandon only has 15% of the vineyards here producing their wines.