![THOUSANDS OF CROP CIRCLES APPEAR | Ancient Aliens | #Shorts THOUSANDS OF CROP CIRCLES APPEAR | Ancient Aliens | #Shorts](https://i.ytimg.com/vi/jg7qgQp4sOM/maxresdefault.jpg)
These mysterious formations have been appearing in farmer's fields for centuries. See more in this #Short from Season 19, Episode 2, "The Crop Circle Code." Watch all new episodes of Ancient Aliens, Fridays, at 9/8c, and next day on The HISTORY Channel website at http://history.com/schedule. ...
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