This show was one of many to start with to make use of laser beams illuminating a setting up and remains employed most weekends. Other famed exhibits incorporate "7000 Eichen" by German artist Joseph Beuys which had 1000s of oaks planted throughout the city and "The Parthenon of Books" via https://spencerntych.wikifrontier.com/7474156/detailed_notes_on_pflegedienst