A wine region is a specific area known for producing grapes and wine. These regions often have unique climates, soils, and topographies that influence the flavor and quality of the wine. Famous wine regions include Bordeaux in France, Napa Valley in the United States, and Tuscany in Italy, each known for distinct grape varieties and wine styles. Wine regions are typically classified by their geographical boundaries and can be further divided into sub-regions. The classification helps consumers identify the origin of the wine and its characteristics. Regulations, such as those in Appellation d'Origine Contrôlée (AOC) in France, ensure quality and authenticity in wine production.