I know this is way off topic, but I thought it was a very interesting image.
Photo from fOTOGLIF
Tiananmen Square is seen amid a sandstorm in Beijing March 20, 2010. A severe sandstorm that plagued northwestern China in the past few weeks arrived in Beijing Friday night, packing strong winds and tonnes of sand, Xinhua News Agency said. REUTERS/Grace Liang (CHINA – Tags: ENVIRONMENT IMAGES OF THE DAY)