4.10 Urban Art Means of Expression of Collective Memory Collective memory can also be valorized through urban art which is a wide field of artistic expression. It combines street art and graffiti and is usually used to summarize all visual art forms arising in urban spaces. Some of the well-known types of urban art are: Graffiti One of the oldest art expressions includes drawings or writing done on the walls. Some simple graffities and writings are often viewed as vandalism, especially when they take place on private properties. However, there are many of them that are notably interesting and artistic (Figure 1) that people admire them. Moreover, there are also 3D graffities (Figures 2-3) done either on the walls or even on the sidewalks and streets. Such type of graffiti gives you the feel of something coming on you out of the surface drawn. Their topic may vary: landscapes, famous people, fictional figures, daily life, etc. In this wide group of topics, memories may be included. Indeed, local traditions, personal or intergenerational memories and social activism could be one interesting pool of ideas for graffiti artists to deal with. Typical examples of graffiti art may be found in many countries worldwide. In Athens, Greece, where a large number of Syrian refugees arrived, Flash mob many graffities were focused on this topic; these paintings were mainly located in neighborhoods where refugees A group of people that and immigrants used to live (Figures 4-6). Through this suddenly assemble in a artistic way of expression, artists tried to make refugees public place and perform to feel welcome and convince natives to help them to be some acts like dance, music integrated in the local community. and other entertainment. Information about how acts can valorize collective memory are presented in sections: Theatre and Cinema. 72