Australia is an island continent located in the Southern Hemisphere, making its seasons opposite of those in Europe. It is composed of 7 states and territories and has a population of around 22 million people. The majority of cities are located along the eastern and southern coasts. While most of the interior is dry outback with few inhabitants, the outback plays an important role in Australian culture. Some iconic Australian symbols include kangaroos, Uluru, the Sydney Opera House, and the Great Barrier Reef.