“…In general, there has been a growing interest in physical spaces and on the role of technology in city-wide environments [1,3,4,5,6,7,8,9]. Many projects investigating new kind of learning activities have also moved their attention to the urban environment [2,10,11,12,13,14]. Ubiquitous and mobile technologies might facilitate learners to continue their learning outside their classrooms, when and where they desire, through exploration and interaction.…”