Sprayed-over walls are in. What began as graffiti or street art as illegal smearings is evolving more and more into professional urban art. You can just experience that in Heidelberg again at this year’s Metropolink Festivalwhich takes place until August 16 on the site of the former US barracks Patrick-Henry-Village. Because it is so spacious there, up to 500 visitors can stay there at the same time.
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