Season
- Season 0 2009-03-08
- Season 1 2010-04-20
- Season 2 2010-10-28
- Season 3 2011-07-28
- Season 4 2012-02-17
- Season 5 2012-12-21
- Season 6 2013-09-30
- Season 7 2014-01-24
- Season 8 2014-06-13
- Season 9 2014-10-31
- Season 10 2015-07-24
- Season 11 2016-05-06
- Season 12 2017-04-28
- Season 13 2018-04-27
- Season 14 2019-05-31
- Season 15 2020-01-25
- Season 16 2020-11-13
- Season 17 2021-08-06
- Season 18 2022-01-07
- Season 19 2023-01-06
- Season 20 2024-01-05
- Season 21 2025-02-07
Season 21 Episode
- Season 12 The Alien Hunters
- Season 12 Forged by the Gods
- Season 12 The Mystery of Rudloe Manor
- Season 12 The Alien Architects
- Season 12 The Pharaohs' Curse
- Season 12 The Science Wars
- Season 12 City of the Gods
- Season 12 The Alien Frequency
- Season 12 The Majestic Twelve
- Season 12 The Akashic Record
- Season 12 Voices of the Gods
- Season 12 The Animal Agenda
- Season 12 The Replicants
- Season 12 A Spaceship Made of Stone
- Season 12 The Alien Disks
- Season 12 Return to Gobekli Tepe
Ancient Aliens - Season 12 Episode 4 The Alien Architects
7.00 42 minutes Many of the architectural marvels of the ancient world bear striking similarities to one another, even though they were built by civilizations that were separated by thousands of miles and are believed to have had no contact with one another. Separated by more than 7500 miles, the Giza pyramid complex in Giza, Egypt and the Avenue of the Dead in Teotihuacan, Mexico contain pyramids that are aligned with the constellation of Orion's belt. An ancient pyramid temple in Cambodia known as Baksei Chamkrong is an almost identical match for the Temple of the Jaguar in Guatemala. Many structures built using stone slabs that weighed over a hundred tons. But how did primitive people achieve such extraordinary feats? And why do we see such similarities? Could these sites have all been designed by alien architects?
