Australia has a total of 19 UNESCO World Heritage-listed sites, which include some of the oldest rainforests on earth and around one-third of the world's protected marine areas. A UNESCO World Heritage Site is a place, such as a wilderness area, island, historic monument, building or city that is considered by an international committee as having special cultural or physical significance to the international community. Nominated sites must be of ‘outstanding universal value' and meet at least one of ten cultural or natural criteria. These World Heritage sites become national treasures that must be protected and preserved by the host country.

The 19 UNESCO World Heritage-listed sites are:

Great Barrier Reef

Kakadu National Park

Willandra Lakes Region

Lord Howe Island Group

Tasmanian Wilderness

Gondwana Rainforests of Australia 1

Uluru-Kata Tjuta National Park 2

Wet Tropics of Queensland

Shark Bay, Western Australia

Fraser Island

Australian Fossil Mammal Sites (Riversleigh / Naracoorte)

Heard and McDonald Islands

Macquarie Island

Greater Blue Mountains Area

Purnululu National Park

Royal Exhibition Building and Carlton Gardens

Sydney Opera House

Australian Convict Sites

Ningaloo Coast

More Info: www.australia.com