Between the darkness of the night and the colours of the lights, the Huangpu River in Shanghai is witness of one of the contemporaneous miracles in the world, the fast development of Shanghai and also of the country. The second most important city in China, one of the most active ports in all the world, making it the door with the rest of the countries. Shanghai keeps both sides of the history, a modern city with high towers in one side and the ancient history of its building in the other.