World’s longest national road in Australia is 14,500 km long and forms a giant loop around the continent, crossing deserts, rainforests and major cities

Australia has the world's longest national highway, which is a marvelous engineering example known simply as ‘Highway 1.’ Spanning approximately 14,500 kilometres, this massive highway covers around the entire mainland continent like a belt, acting as an important transport base that connects every state capital city from Sydney to Perth and Darwin.

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