The official tourism slogan is "Simply Beautiful". The main attractions for tourists include Buddhist culture and colonial architecture in Luang Prabang; gastronomy and ancient temples in the capital of Vientiane; backpacking in Muang Ngoi Neua and Vang Vieng; ancient and modern culture and history in The Plain of Jars region (main article: Phonsavan); Laos Civil War history in Sam Neua; trekking and visiting hill tribes in a number of areas including Phongsaly and Luang Namtha; spotting tigers and other wildlife in Nam Et-Phou Louey; caves and waterfalls near Thakhek; relaxation, the Irrawaddy dolphin and Khone Phapheng Falls at Si Phan Don or, as they are known in English, the Four Thousand Islands; Wat Phu, an ancient Khmer temple complex; and the Bolaven Plateau for waterfalls and coffee. The European Council on Trade and Tourism awarded the country the "World Best Tourist Destination" designation for 2013 for this combination of architecture and history