Nobel Prize winners and their wives pose for photo during their visit to the red rose city of Petra, Jordan. Nobel Prize winners and their wives pose for photo during their visit to the red rose city of Petra at the end of the gathering of the Nobel Laureates meeting at the ancient city of Petra, Jordan May 19, 2005. The two-day conference of Nobel laureates include panel discussions on peace, security, economic development, poverty, health, environment, science education, media and culture. REUTERS/Ali Jarekji