ChinaHistorySightseeing (c)Sightseeing: Mutianyu Great WallMarjoleine SpitseJuly 10, 2019September 17, 2020 by Marjoleine SpitseJuly 10, 2019September 17, 20200536The Great Wall of China is the collective name of one of China’s longest and most well known fortification systems, it however isn’t one long...