PASSIKUDHA, July 13, 2016 (Xinhua) -- Taleb Rifai, secretary general of the United Nations World Tourism Organization (UNWTO), addresses the opening ceremony of the UNWTO conference in Passikudha, east Sri Lanka, July 12, 2016. The conference's theme is "tourism: a catalyst for development, peace and reconciliation." (Xinhua/Yang Meiju)
