Crop Circles or Crap Circles? Whoever made these hundreds of humongous works of art found around the world, whether three-headed visitors from afar, brilliant rogue architecture students, or practical-joke-minded farmers--they are very, very talented. Check out this documentary trailer—and this real-life mystery.

Crop Circles or Crap Circles? Whoever made these hundreds of humongous works of art found around the world, whether three-headed visitors from afar, brilliant rogue architecture students, or practical-joke-minded farmers–they are very, very talented. Check out this documentary trailer—and this real-life mystery. (And no, contrary to what you thought, it has not been definitively solved.)