As the capital of China, Beijing city is China’s political， cultural center as well as a transport and international exchange hub. It has 3000 years of history. This ancient, young, solemn, and yet charming famous city of culture draws millions of domestic and overseas tourists all the year round. The city encompasses 17020 square kilometers with a population currently 14 million. It is one of the four centrally administered cities in the county, the other three being Chongqing, shanghai and Tianjin. Beijing has a continental climate of temperate zone with four seasons distinctly divide. Autumn is characterized by clear sky and crisp air as well as beautiful scenery, so the city is a magnet for visitors both home and abroad.