Fun Fact

Never mind the Great Wall of China, Australia has the longest fence in the world being 5,614km long, known as the Dingo fence.
It stretches from the Great Australian Bight in SA to Central Queensland and is about twice as long as the Great Wall of China.
It was finished in 1885 and was built as a pest exclusion fence to keep the dingoes out of fertile land and to protect sheep.
It is even longer than the Rabbit Proof fence in Western Australia that was built in 1907.