Located in the upper reaches of the Yellow River, Gansu in northwest China is one of the cradles of Chinese cultures. Lanzhou, a well-known ancient city in China, is the capital of Gansu. It is the second largest city in northwest China, and also the political, economic and cultural center of the province. With a long history and brilliant cultures, Gansu is abundantly endowed with cultural relics and natural scenery. Vast and graceful natural scenery like endless desert and pure glacial landscape presents an impressive and breath-taking picture before your eyes.