Giant Rock Circles Were Found All Over the World. What Could They Possibly Be?

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They weren’t seen in their entirety until the 1920s, but these large stone circles have existed for thousands of years. Once air travel became more popular, pilots and citizens began to notice them in their entirety. Aptly named the “Big Circles” by archaeologists, they are hundreds of meters in diameter. In fact, they’re so big, […]


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