都市足迹城市是一部用石头写成的历史,对于北京这座具有3000多年建城史和800多年建都史的历史文化名城而言,在快速的城市化发展过程当中,如枯木逢春,焕发了勃勃生机。北京市测绘设计研究院拥有大量第一手的历史和现 Urban Footprint The city is a history written in stone. For Beijing, a famous historical and cultural city with a history of more than 3,000 years of construction and a capital of more than 800 years, rapid development of urbanization, such as withered wood, is full of vigor and vitality . Beijing Institute of Surveying and Mapping has a large number of first-hand history and present