The 20 World Heritage sites in Australia range from large natural areas to prominent and historical buildings. The Great Barrier Reef and the Wet Tropics of Queensland are both listed for all four natural criteria. Some sites such as Uluru-Kata Tjuta and Kakadu are listed for both natural and cultural values.
The 20 Australian World Heritage sites are:
Australia's World Heritage Areas cover 45,815,664ha (>30% of Australia's total protected area). The Great Barrier Reef is the fourth-largest natural World Heritage Area (34,870,000ha) on Earth.