University of Bristol - Historical Photographs of China reference number: Bk04-14. Source: 'The Pageant of Peking' by Donald Mennie (A.S.Watson and Co., Shanghai, 1920). This ancient arch (Yuntai or The Cloud Platform (云台) is also known as the Language Archway or Gate of Six Languages (Sanskrit, Tibetan, Phags-pa, old Uyghur, Chinese, Tangut). The gateway is at Nankou (Nankow) Pass (Harmony or Juyong Pass) (now Juyongguan 居庸). The Cloud Platform is a way through a branch of the Great Wall (长城), about 40 miles north of Peking (Beijing). See also Bk04-54, DC-s09, NA01-86, OH-s02.
Gateway at Juyongguan, Great Wall of China