On one hand, globalization in the world, fast pased technological, demographic and economic developments affects the images of cities. So that, similar city views are emerging, instead of perception of the different characteristics of them. Naturally , this situation is reflecting in their own identity of cities, so that the issues of protection the original images of cities and prevention of deletion the differences between them are getting important. In this contex, in the article; at first, the images of cities are explaining based on their establishment and development from past to present. Then, the changes and developments of the current and near-future city images are presenting by examples, with the coming of green into the urban planning. Later, the negative effects of the rapid urban developments on silhouette, landscape and front views have been emphasized by defining the concepts likeurban landscape , city silhouette , front view , background view , effected areas , crown building etc. In the forward chapters, the effects of all these concepts on urban identity as natural and cultural elements have been explained and some examples about undesired urban landscape formations have been given by taking up the issues of urban identity, green-use, landcape and balance in skylines of evolving cities. Consequently, in the light of the fact that all these parameters will direct the all design decisions, the basic principles about protection and improvment of landscape of evolving cities have been determined. The effects of these principles upon designing the cities and making the development plans have been explained. At last, the importance of using the concept of urban design project instead of the concept of construction plan has been emphasized.