China has 43 world heritage sites , the most of any country . Some countries have to cope with boom in domestic tourism . Chinese made 2.6 million trips last year as more have money to travel . Designated a world heritage site in 1997 , the town , home to the matriarchal Dongba culture , now receives 11 million visitors a year and conservation experts have been shocked by the level of commercialization . Reports emerge that economic development may interfere with heritage preservation .
China has 43 world heritage sites , the most of any country . Some countries have to cope with boom in domestic tourism . Chinese made 2.6 million trips last year as more have money to travel . Reports emerge that economic development may interfere with heritage preservation .