NOTE:
Not created by humans. Modern art created by humans is not this good, in my opinion.
The best documentary on these crop formations, although including 10 minutes of speculation, is a 40+ minute episode of the TV show Ancient Aliens:
Unfortunately, I can't find a free version online and my MP4 file is too large to post on this blog. It's worth watching, even if it costs one dollar or two.
Here's a short coming attractions video promoting the show: https://www.youtube.com/watch?v=a9WNFqo2zQI
Ye Editor
