Cities were always related to art historically, aesthetically and politically, and also functioned as motives and depots of art. Art has mainly been serving as the cities' public story-teller, to bring euphoria with people. Arts of different cities have different characteristics and styles, but all have the character of publicness. Of course, citizens in different cities should have different aesthetic standpoints and choices, because there is not only differences of styles of a city and artists in creating of public art, but also differences of aesthetic values with the city historical and cultural differences. Nowadays, it is necessary to give a new perception to public art, because it is not only a question of euphoria in art, but also in economical and political fields.