Photo taken on Sept. 7, 2017 shows bottles of champagne inside the cellar of the House of Pommery in Reims, France. The 17km-long cellar of the House of Pommery is converted from a Roman quarry and has now about 30 millions bottles of champagne in stock. The House of Pommery was founded in 1858 and was considered to be the first house to brew and to commercialize the brut Champagne in 1874. (Xinhua/Chen Yichen)
