After the experiments of Tokyo, Berlin and Los Angeles, planning cities as pieces has become more important. For this reason, city planners have tendency to in-piece design. The aim of this action is giving shape to urban pieces, on the one hand; and is restoring human relations, which are underestimated, on the other hand. In this context, throughout the study, it will be examined that, how people use outer spaces in cities, and that which outer space organisations result in what kind of human behavior. For this purpose, under the city-scale of Trabzon in Turkey, some old and new focal points will be determined and human-space influences in changing social life and in outer spaces, which are used in common, will be analysed. Under the light of outer space examples, the meaning of spaces, meanings that spaces gain throught time will be examined in sustainable development, under the coverage of sustainability.