World's Longest Fence. South Australia
The dog fence is the longest fence in the world. It stretches (3,306 mi) from South Australia to Queensland and separates the country into two parts: one where dingos can roam freely and one where you can do sheep ranching safely. It was originally designed to keep out rabbits but it was more successful at keeping out dingos.
Looks like my Yard in Poland with cheap long fence.