Australia is an island continent located between the Indian and South Pacific oceans. It has a diverse landscape that includes deserts, rainforests, and the Outback interior. The population of over 24 million is predominantly urbanized along the eastern and southeastern coasts. Major cities include Sydney, Melbourne, Brisbane, Perth, and the capital Canberra. The majority of Australians have European ancestry and Christianity is the dominant religion, though irreligion is rising. The British monarch is the head of state, with an elected parliamentary government.