The imperatives of Champagne wine production have resulted in an original, three-pronged organisation, based on functional town planning, prestigious architecture and an underground heritage. Criterion (vi): The Champagne, Hillsides, Houses and Cellars, and particularly the Saint-Nicaise Hill, with its monumental quarry-cellars and its early Champagne Houses, and the Avenue of Champagne, with the showcasing spaces of the commerce houses, convey in an outstanding manner the unique and world-renowned image of Champagne as a symbol of the French art of living, of festiveness and celebration, of reconciliation and victory (particularly in sport). The chalk quarries are still used in Champagne production and the network of cellars is well preserved and still perfectly operational. The Champagne Houses have ensured the safeguarding of their architectural heritage, including the original decor and furniture, to a large extent, and they are still used for activities related to the Champagne enterprise. The management plan for the Champagne Hillsides, Houses and Cellars is a tool for regional development as well as for protection.