Techno festival "Mayday 2008", Dortmund, North Rhine-Westphalia, Germany, Europe

2008 area basin being beings big busy crowd crowded crowds culture cultures display displays dortmund europe european event events federal festival festivals filled floodlighted floodlit frg full function functions german germany great green hall halls human humans illuminated illumination illuminations indoor indoors inside interior large large scale laser lasers light lighting lights lit lively mayday music north nrw of people person persons photo rave raves republic rhine rhine westphalia rhine westphalian ruhr scale show shows techno techno up venue venues westphalia westphalian