The natural attribute of the centre of heaven and earth was seen to be Mount Songshan and worship of Mount Songshan was used by the Emperors as a way of reinforcing their power. They thus reinforced the influence of the Dengfeng area. Criterion (iii): The astronomical idea of the centre of heaven and earth is strongly linked with the idea of imperial power, with the propitiousness of establishing capitals at the centre of heaven and earth, and with its natural attribute, Mount Songshan and the ceremonies and ritual associated with it. In 2007 the Zhengzhou Municipal People’s Government established the Zhengzhou Municipal Preservation and Management Office for the Historic Monuments of Mount Songshan. The Dengfeng Municipal Administration of Cultural Heritage was established in 1990 to open to public and protect the historic monuments.