Over 10,000 crop circles have been reported worldwide, appearing in 50 different countries, and nearly every continent on Earth. See more in Season 10, Episode 8, "Circles from the Sky." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite ...

Due to warfare, instability, and inaccessibility--there are specific regions of the world that are off-limits to exploration. See more in Season 10, Episode 10, "The Forbidden Zones." Watch all new episodes of Ancient Aliens, Fridays at 9/8c, and stay up to date on all of your favorite shows ...