On Saturday, March 26 at 20:30 people around the world will switch off electricity for one hour to show the necessity of uniting efforts of humanity to save the Planet Earth. 134 countries on seven continents, more than 4000 cities, and more than 750 legendary sites around the globe lights out for Earth Hour in 2011.
Before your photo taken during the flash mob, in which famous landmarks, is the hallmark of the cities and even entire countries.
