Kerala's beaches, backwaters, lakes, mountain ranges, waterfalls, ancient ports, palaces, religious institutions and wildlife sanctuaries are major attractions for both domestic and international tourists. The city of Kochi ranks first in the total number of international and domestic tourists in Kerala. Until the early 1980s, Kerala was a relatively unknown destination compared to other states in the country. In 1986 the government of Kerala declared tourism an important industry and it was the first state in India to do so. Marketing campaigns launched by the Kerala Tourism Development Corporation, the government agency that oversees the tourism prospects of the state, resulted in the growth of the tourism industry. Many advertisements branded Kerala with the tagline "Kerala, God's Own Country". Kerala tourism is a global brand and regarded as one of the destinations with highest recall. In 2006, Kerala attracted 8.5 million tourists, an increase of 23.68% over the previous year, making the state one of the fastest-growing popular destinations in the world. In 2011, tourist inflow to Kerala crossed the 10-million mark.