Creepy crop circles, freak me out!!!!

These crop circles creep the hell out of me. Just see how big they are!!! Of course most of them are human made but as the scientists confirmed some of them are not man-made and definitely there is no divine intervention(I know this for sure), then how are they coming up every other year, that too in different places around the world. Not to frighten you guys but to enlighten you about the mysteries around us.