Mystery Marlee Man
The figure of a man etched into the ground was found 60 km out of the town of Marree in South Australia. It was more than 4 km long. This is not only Australia's but also the world's biggest geoglyph and it's known as the Marree Man. It had been created by scouring out the vegetation from the land and exposing the bar earth underneath. No one knows the main reason for this being hyped so much, or why made this astounding drawing on the earth. A local version says that the eccentric Bardius Goldberg made this using a GPS and a bulldozer, although there are only a few clues. This is still a mystery.