Egypt in Queensland
Yes, on the GRanite Belt to be exact. It started out as a rock clearing exercise from what is now an enormous vineyard growing contract graps for the larger commercial wineries. So many sandstone & granite boulders were pulled out that the property owners decided to do something constructive with them. Construct they did. The photo doesn't give any impression of size, sadly, but each of those stones is the size of a small car, say, a mini. Each one probably weighs at least half a tonne if not closer to a full tonne. The structure would easily be over100 feet high.