Tourism in Turkey
Tourism in Turkey has experienced rapid growth in the last twenty years, and constitutes an important part of the economy. In 2013, 37.8 million foreign visitors arrived in Turkey, which ranked as the 6th most popular tourism destination in the world; they contributed $27.9 billion to Turkey's revenues. In 2012, 15 percent of the tourists were from Germany, 11 percent from Russia, 8 percent from the United Kingdom, 5 percent from Bulgaria, 4 percent each from Georgia, the Netherlands and Iran, 3 percent from France, 2 percent each from the USA and Syria, and 40 percent from other countries. Turkey has 13 UNESCO World Heritage Sites, such as the "Historic Areas of Istanbul", the "Rock Sites of Cappadocia", the "Neolithic Site of Çatalhöyük", "Hattusa: the Hittite Capital", the "Archaeological Site of Troy", "Pergamon and its Multi-Layered Cultural Landscape", "Hierapolis – Pamukkale", and "Mount Nemrut"; and 51 World Heritage Sites in tentative list, such as the archaeological sites or historic urban centers of Göbekli Tepe, Gordion, Ephesus, Aphrodisias, Perga, Lycia, Sagalassos, Aizanoi, Zeugma, Ani, Harran, Mardin, Konya and Alanya. Turkey hosts two of the Seven Wonders of the Ancient World, which are the Mausoleum at Halicarnassus and the Temple of Artemis.