The Best Episodes of Ancient Aliens

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8.6/10(51 votes)
#1 - Mysteries of the Maya
S20:E116/28/2024
Considered by many to be the greatest civilization in the history of the Americas, the Maya thrived for more than 2,000 years. Now, new evidence is being discovered that completely upends our understanding of this ancient culture... and might provide evidence that the Maya came in contact with extraterrestrial visitors.
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8.5/10(45 votes)
#2 - Resurrecting Puma Punku
S20:E209/13/2024
Puma Punku in Bolivia features stone blocks, each carved with precision; the blocks lie scattered across the landscape, confusing archaeologists as to what the ancient site might have been.
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8.4/10(49 votes)
#3 - The Linda Moulton Howe Files
S20:E188/30/2024
For more than four decades, award-winning journalist Linda Moulton Howe has covered the most mysterious phenomena on Earth. Could her investigations on everything from bizarre animal deaths to crop formations and alien abductions lead us to a profound new reality?
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8.4/10(37 votes)
#4 - Mysteries of the Aztecs
S21:E73/21/2025
The Aztecs built one of the world's most powerful and feared empires and they claimed that they were guided by a pantheon of more than a thousand gods who came to Earth from different parts of the universe. Could the incredible story of their rise to power and their sudden demise, reveal a history of extraterrestrial intervention in Mesoamerica?
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8.1/10(83 votes)
#5 - Mystery of the Lost Civilization
S19:E31/20/2023
The discovery of the ancient megalithic site of Karahan Tepe in southern Turkey turned the world of archaeology on its head, displaying engineering skills far beyond what the people of the time were thought to be capable of. But could new evidence reveal that this more than 11,000-year-old complex was built not by humans…but giants?
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8.3/10(41 votes)
#6 - Egypt's Giant Tombs
S20:E178/23/2024
Deep beneath the sands of Egypt lie 24 enormous sarcophagi, and every one of them is empty; discussing what purpose those giant tombs had served.
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The 20 WORST Episodes of Ancient Aliens

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8.1/10(76 votes)
#7 - Return of the Egyptian Gods
S18:E209/16/2022
In the 20th century, a mysterious British woman who claimed to be the reincarnation of an ancient Egyptian priestess shocked Egyptologists by accurately locating countless structures and artifacts in the Nile Valley. Could it be that she was carrying out an otherworldly agenda–and preparing for the return of the Egyptian gods?
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8.3/10(38 votes)
#8 - The Volcano Factor
S21:E109/5/2025
Volcanoes have inspired countless myths and legends, but curiously, they are also major hotspots for UFO sightings; is it possible that these geological formations, which can generate great energy, are attracting otherworldly visitors?
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8.0/10(132 votes)
#9 - William Shatner Meets Ancient Aliens
S16:E62/12/2021
In this extraordinary two-hour special, Shatner will bring thought-provoking questions to the leading experts of the show. Ancient Astronaut theorists Giorgio Tsoukalos, Erich von D niken, David Childress, William Henry and Linda Moulton Howe will be joined by former British Ministry of Defense investigator Nick Pope, rocket scientist Dr. Travis Taylor, theoretical physicist Dr. Michio Kaku, and religious history experts Rabbi Ariel Bar Tzadok and Reverend Michael Carter. They will explore everything from human origins to groundbreaking archaeological finds, new understandings of the cosmos and the profound possibility that we are not alone in the universe.
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8.0/10(125 votes)
#10 - The Alien Architects
S12:E45/19/2017
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?
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8.1/10(67 votes)
#11 - Secrets of the Sumerians
S20:E72/23/2024
More than 7,000 years ago, the ancient Sumerians established what is considered the world's first civilization and they credited their extraordinary achievements to their gods, the Anunnaki. But is it possible that these powerful beings were, in fact, extraterrestrial visitors to Earth?
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8.0/10(100 votes)
#12 - Impossible Artifacts
S16:E72/19/2021
Throughout the world, ancient objects have been found that leave archaeologists at a loss. Could these impossible artifacts suggest that advanced--and perhaps even extraterrestrial--civilizations existed on Earth thousands of years before our own?
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8.1/10(51 votes)
#13 - Jacques Vallée: UFO Pioneer
S20:E158/9/2024
Dr. Jacques Vallée has many scientific degrees, is a best-selling author and is regarded as one of the internet's founding fathers. But he is best renowned for his groundbreaking work on the subject of UFOs, where his bold theories call into question our understanding of alien life.
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8.0/10(74 votes)
#14 - The Top Ten Pyramid Sites
S19:E116/30/2023
Ancient Aliens is counting down the world’s top ten pyramid sites, from a valley in Peru with over 250 hidden pyramids to an ancient Greek city with mysterious 4800-year-old ruins to Egypt’s famous Giza Plateau. Could the extraordinary structures that stand at these sites provide evidence of extraterrestrial visitation?
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7.9/10(157 votes)
#15 - Pyramids of Antarctica
S11:E15/6/2016
Is there evidence of ancient technology buried beneath the ice of the most southern continent?
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7.9/10(148 votes)
#16 - Space Station Moon
S11:E117/29/2016
It was mankind's finest hour, the greatest technological achievement of the 20th Century--the Apollo 11 mission to the Moon. But the Apollo program was short-lived, and after Apollo 17 in 1972, we never went back. Could it be that we encountered something--or someone--on the Moon? Did the Apollo astronauts witness more than NASA wants us to know? The Moon is the most visible celestial body in the night sky and is essential to life on Earth. But what if the Moon is not the natural object we believe it to be? Unidentified lunar objects in NASA photography may point to extraterrestrial structures on the moon, and possibly evidence of what lies beneath the surface. Some Ancient Astronaut theorists have even suggested that the Moon is actually an artificial object, placed in its current position by otherworldly beings thousands of years ago.
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7.9/10(144 votes)
#17 - The Mystery of Nan Madol
S15:E11/25/2020
Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia's Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange visitors floated the massive rocks through the air.
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7.9/10(143 votes)
#18 - Destination Mars
S11:E25/13/2016
Within 20 years, we are expecting to send the first colonizers to the Red Planet. Astronauts will brave the six-month journey to become the first extraterrestrials visitors to Mars--where they are expected to live and die there, never to return to Earth. But why have we always had a strange fascination with this particular planet? The latest NASA research has revealed that not only is there evidence of liquid water on the planet, but that life on Earth was most likely seeded on Mars. Ancient Astronaut theorists even suggest that the development of life on Earth may have similarities to how scientists are currently planning to keep humans alive on the red planet. Could extraterrestrials from Mars have colonized Earth in our remote past? Could our voyage to Mars not only unlock the mysteries of our ancient, extraterrestrial origins--but also be the key to the long-term survival of the human species?
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8.1/10(45 votes)
#19 - The Search for Extraterrestrial Intelligence
S20:E147/19/2024
For thousands of years, humankind has attempted to make contact with beings from beyond Earth; now, the search for extraterrestrial intelligence is ramping up, with new technologies allowing individuals to explore the universe.
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8.3/10(27 votes)
#20 - Britain's UFO Files
S21:E1510/16/2025
From ancient sites like Stonehenge to the crop circle phenomenon and modern-day UFO sightings, Great Britain is a place of mysteries; exploring if throughout history this island has been a destination for extraterrestrial visitors.
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7.9/10(133 votes)
#21 - Return to Antarctica
S14:E15/31/2019
Antarctica may serve as home base for extraterrestrial visitors to Earth, but as human exploration of the frozen continent increases, humans may come face to face with the ruins of an ancient advanced civilization buried beneath the ice.
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8.0/10(66 votes)
#22 - Edgar Cayce: The Sleeping Prophet
S19:E158/4/2023
In the early 1900s, a modern-day prophet from the hills of Kentucky became a worldwide sensation: Edgar Cayce. He claimed to receive visions of both the past and the future while in a trance, he healed the sick, and alleged to have encounters with otherworldly beings. Could it be that Edgar Cayce was a vessel used to carry out an alien agenda?
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8.5/10(19 votes)
#23 - Alien A.I.
S22:E117/9/2026
The rapid development of artificial intelligence has made it a powerful tool for historians and archaeologists. But might it also reveal evidence of an extraterrestrial presence on Earth?
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8.3/10(26 votes)
#24 - Mysteries of the Norse Gods
S21:E1610/23/2025
The ancient legends of the Norse read like modern science-fiction, with powerful gods wielding incredible weapons and high technology. Could it be that these mythological tales are based on real encounters with extraterrestrial beings?
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8.2/10(32 votes)
#25 - The Abduction Files
S21:E129/19/2025
All over the world, there are people who claim they have been abducted by aliens; since the 1970s, a growing number of researchers have dedicated their lives to uncover what is behind this disturbing phenomenon.
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