TV Ancient Aliens - Season 5 Episode 12 : The Monoliths Ancient Aliens - Season 5 Episode 12 : The Monoliths 7/10 by 287 users Massive stone structures that reach to the heavens... strange, giant figures buried deep in the Earth... and energy emitting spheres connected around the globe... What compelled ancient man to move colossal stones, in some cases weighing thousands of pounds, and to build remarkably similar stone monuments all around the world? From the jungles of Costa Rica to England's rural countryside, ancient people achieved extraordinary feats of construction without advanced tools or technology. Is it possible that extraterrestrials instructed the ancients to build these complex structures? Or were our ancestors driven to create these monoliths in order to reconnect with celestial travelers who once walked the Earth? Could ancient monoliths hold advanced, extraterrestrial powers we have yet to realize? And if so, just what will happen when we unlock the mystery of the monoliths? Details Casts Posters Images Title Ancient Aliens - Season 5 Episode 12 : The Monoliths Alternative Titles Nos ancêtres les extraterrestres, 远古外星人, Ancient Aliens - Neue Erkenntnisse, Generacion alien, Alienígenas ancestrales, Alien Theory, 古代の宇宙人, Goście z Przeszłości, Drevni vanzemaljci First Air Date 2010-04-20 Last Air Date 2025-11-06 Number of Episodes 278 Number of Seasons 21 Genres Documentary, Mystery, Sci-Fi & Fantasy, Networks History, Casts Robert Clotworthy, Giorgio A. Tsoukalos, Ariel Bar Tzadok, Jonathan Young, David Childress, Erich von Däniken, Linda Moulton Howe, David Wilcock, George Noory, Philip Coppens, Nick Pope Plot Keywords , Narrator (voice) Robert Clotworthy Self Giorgio A. Tsoukalos Self Ariel Bar Tzadok Self Jonathan Young Self David Childress Self Erich von Däniken Self Linda Moulton Howe Self David Wilcock Self George Noory Self Philip Coppens Self Nick Pope Self Mike Bara Self Bill Birnes Self Hugh Newman Self Robert M. Schoch Self Nick Redfern Episodes List Ancient Aliens Season 5 :Episode 1 Secrets of the Pyramids Secrets of the Pyramids 2012-12-21 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 2 Aliens and Cover-Ups Aliens and Cover-Ups 2012-12-28 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 3 Alien Power Plants Alien Power Plants 2013-01-04 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 4 Destination Orion Destination Orion 2013-01-11 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 5 The Einstein Factor The Einstein Factor 2013-01-18 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 6 Secrets of the Tombs Secrets of the Tombs 2013-01-25 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 7 Prophets and Prophecies Prophets and Prophecies 2013-02-08 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 8 Beyond Nazca Beyond Nazca 2013-02-15 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 9 Strange Abductions Strange Abductions 2013-02-22 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 10 The Von Daniken Legacy The Von Daniken Legacy 2013-04-05 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 11 The Viking Gods The Viking Gods 2013-04-12 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings... Ancient Aliens Season 5 :Episode 12 The Monoliths The Monoliths 2013-04-19 Did intelligent beings from outer space visit Earth thousands of years ago? From the age of the dinosaurs to ancient Egypt, from early cave drawings...