I recently spotted a friend wearing a shirt with the phrase “Heaps Good” superimposed over the state of South Australia. What caught my eye is that the state looks remarkably like the District of Columbia in the United States.

In fact, if you scale down and rotate South Australia by 45°, it’s hard to tell the two jurisdictions apart. One major difference is that South Australia is much bigger: The Australian state contains 379,725 square miles of land compared to 61 for the District.