Tourism in Mumbai is an industry that attracts almost 6 million tourists per year, making it the 30th-most visited location worldwide. According to United Nations, as of 2018, Mumbai was the second most populous city in India after Delhi and the seventh most populous city in the world with a population of 19.98 million. Mumbai offers natural heritage and modern entertainment including leisure spots, beaches, cinemas, studios, holy places, amusement parks and historical monuments. Transport options include air, road, train and ship.