Kaifeng is not far from the Yellow River and used to be the capital of Chinese Empire. Nowadays it is a middle size city which main characteristic is to be one of the only Chinese cities preserved from modernisation. Most of the traditional houses still exist and walking in Kaifeng streets makes feeling like one century ago. Kaifeng also used to be, and is still, a major religious center for several cultures, as proved by the important muslim minority, and the many buddhist and taoist temples in the city.