Pics of Ljubljana Preseren Square -- Ljubljana, Slovenia September 2, 2013 : People walking at Triple Bridge and Preseren Square in Ljubljana, Slovenia. This year the city of Ljubljana is competing for the title of European Green Capital 2016.Pics of Ljubljana Preseren Square -- Ljubljana, Slovenia September 2, 2013 : People walking at Triple Bridge and Preseren Square in Ljubljana, Slovenia. This year the city of Ljubljana is competing for the title of European Green Capital 2016.