DAVOS/SWITZERLAND, 17JAN11 - Aerial Photo of Davos, the biggest tourism metropolis of the Swiss alps, captured before the opening of the Annual Meeting 2011 of the World Economic Forum in Davos, Switzerland, January 17, 2011. Davos is in the middle of Swiss Alps and the city for holidays, sports, congresses, health, development and culture. Copyright by World Economic Forum swiss-image.ch/Photo by Andy Mettler