Castellane
Unlike most of the area's Champagne tours, at Castellane you get a chance to see the bottling, corking, and labeling plant. During the 45-minute guided tour of the underground chalk cellars, every step of the Champagne-making process is carefully explained. The visit culminates with a glass of Castellane Brut. Above the cellars, there's a museum with an intriguing display of old tools, bottles, labels, and posters. A climb to the top of the iconic 200-foot tower rewards you with a great view over Épernay and the surrounding Marne vineyards.