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Over the last few decades of growing data production in the field of remote sensing and GIS, we have experienced a rapid development of methods and tools in green network analysis. A series of journal articles, methodological and technical guidelines describe how to map green system based on aerial photography and satellite imagery. Many studies stress that green networks have a climatic conditioning role and outstanding ecological significance in landscapes. Environmental agreements and sustainability aspects emphasize the need for mapping and managing green infrastructure in urban and rural landscapes. The usual question is: What are the elements of green infrastructure in a study area? In the last few months, we have prepared a series of satellite images and aerial photo analyses and have processed freely available spatial data on green spaces, land use, climatic hot spots, and have searched for ecological and recreational potential of landscapes in Hungary, in order to explore greenway suitability. In this paper, we make a report about our research, discovering greenway potential of urban and rural landscapes.