one of the most powerful and striking displays in the body worlds exhibition is the blacken lungs of a smoker show side by side with the healthy lungs of a non-smoker. this visible comparison has made many visitors quit smoking. after exhibition, many visitors left their unfinished packs of cigarettes on the glass display case containing the smoker's lungs. it showed their victory against nicotine addiction. the physician of the exhibition said that many visitors to the display reported that they had tried everything but only stopped smoking after seeing the smoker' lungs.