Top 20 Best Alien Documentaries Welcome to WatchMojo, and today we’re counting down our picks for the most captivating documentaries and docuseries that cover the fascinating possibilities of visits ...

Not since the days of Erich von Daniken's "Chariots of the Gods," director Steven Spielberg's "Close Encounters of the Third Kind," and publisher Bob Guccione's "Omni" magazine has there been this ...