A massive pyramid located in Teotihucan, Mexico could commemorate the arrival of extraterrestrials, in this clip from Season 18, "Decoding the Dragon Gods." #AncientAliens Subscribe for more from Ancient Aliens and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT ...

Watch all new episodes of Ancient Aliens returning soon, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. Japan's first ruler, Emperor Jimmu, possessed divine gifts exemplifying extraterrestrial technology gifted to him by Sun Goddess Amaterasu, ...

Watch all new episodes of Ancient Aliens returning soon, and stay up to date on all of your favorite History Channel shows at http://history.com/schedule. After discovering the remains of Jesus’ cross, theorists believe those who possess these ancient relics harness unfathomable extraterrestrial ...