Are there such things as ghosts? Are UFOs visitations from alien spacecraft? Are crop circles manmade or extraterrestrial phenomena? What is real and what is myth? This entertaining and thought-provoking series from National Geographic examines modern-day mythologies with the assistance of both believers and skeptics, exploring the evidence supporting and debunking popular unexplained mysteries and legends from around the world. Two-disc set includes "Ghosts," "Stigmata," "UFOs," and "Crop Circles." 188 min. total. Standard; Soundtrack: English Dolby Digital stereo.