There have been many famous archaeological mysteries that have been debated in terms of how they were made, from Stonehenge to Egyptian structures and the like.  Apparently there are some structures in Kazakhstan that no one can explain:

Back in 2007, a series of huge, mysterious geoglyphs were discovered in the grasslands, or steppes, of Kazakhstan. Formed by human-made mounds, divots, and trenches, the structures create giant images that can be seen from the sky, including shapes that look like crop circles, squares, and swastikas. Archaeologists estimate they were created around 8,000 years ago, but have no idea who built them, or why.

Let’s find out more about what these mysterious structures could mean on page 2

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