A wine waiter shows a bottle of Pommery champagne in a vineyard in Reims, France on Sept, 7, 2017. 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)
