You may have seen the riveting photos earlier this week of Chinese residents lining up for some rare sniffs of fresh air out of sealed bags. The event was part public awareness campaign for China's air pollution crisis, part tourism marketing stunt for the stunning Laojun Mountain Nature Reserve, part of the Funiushan Global Geopark in Henan Province. After collecting 2,000 cans and 40 bags of air from a cliff on Laojun Mountain, the nature reserve's management company gave them out to the citizens of Zhengzhou, one of the most polluted cities in China. Famous throughout China for its beauty, the 2,217-meter tall Laojun Mountain is also known as the final resting place of Laozi, the founder of Taoism. On the top of the mountain sits the Laojun Temple, surrounded by three pavilions -- Jin Dian, Liang Bao Tai and Yu Huang Ding.