Brussels, 06/02/2006 (Agence Europe) - The 6th annual conference of the World Tourism and Travel Council (WTTC) will be held in Washington on 10-12 April under the slogan “Open Mind, Open World”. The aim is to show travelling as a means of cultural exchange and to examine ways of strengthening the economies concerned through increasing the numbers of business and leisure trips. Although the travel and tourism industry generated more than 10% of the world's GDP in 2005, its importance has...