Champagne houses are specialized wineries located in the Champagne region of France, known for producing the sparkling wine called Champagne. These houses typically blend grapes from various vineyards to create their unique styles and flavors. They follow strict regulations to ensure quality and authenticity, including the use of specific grape varieties like Chardonnay, Pinot Noir, and Pinot Meunier. Many famous Champagne houses, such as Moët & Chandon and Veuve Clicquot, have a long history and are recognized worldwide. They often offer tours and tastings, allowing visitors to learn about the traditional methods of production, including the secondary fermentation process that gives Champagne its signature bubbles.