The landmark can be developed F9 by an artist: Invited artists can take over such a project Painters and sculptors can be invited. A sponsorship could facilitate the implementation of such an activity. Another alternative could be to organize an artistic competition or a festival in which artists are invited to participate. An award can be given. Such an action has been organized in Larisa, Greece (2017) F10 when more than 10 graffities have been created along the river of the city where a linear park had been developed. In that way, this area is now recognizable and some specific points are now recognized as landmarks (Figure 11). The landmark can be created by locals, in a spontaneous way: In order to do that, a motivation is needed. For example, in case of yarn F11 booming, youth workers can start the project by locating fibers to trees or urban equipment elements. Another example is the case of “love locks”, id est bridges where padlocks are located by couples (Figure 12). After someone make the start it is easy for such a landmark to be developed. F12 107