Documentary•Mystery•Sci-Fi & Fantasy

The Best Seasons of Ancient Aliens

Every season of Ancient Aliens ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Ancient Aliens!

Binge this in Unknown•Peaking at 8.6/10

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 to continued mass sightings in the US, each episode gives

Airs on

Season 22

15 Episodes

First Aired: Jan 2026

7.9/ 10

Average Rating

Best episodeE11 · Alien A.I. 8.5

Season 20

20 Episodes

First Aired: Jan 2024

7.8/ 10

Average Rating

Best episodeE11 · Mysteries of the Maya 8.6

Season 21

17 Episodes

First Aired: Feb 2025

7.8/ 10

Average Rating

Best episodeE7 · Mysteries of the Aztecs 8.4

Other Seasons

Season 19

20 Episodes

First Aired: Jan 2023

7.7/ 10

Average Rating

Best episodeE3 · Mystery of the Lost Civilization 8.1

Season 16

10 Episodes

First Aired: Nov 2020

7.5/ 10

Average Rating

Best episodeE6 · William Shatner Meets Ancient Aliens 8.0

Season 11

15 Episodes

First Aired: May 2016

7.5/ 10

Average Rating

Best episodeE1 · Pyramids of Antarctica 7.9

Season 1

5 Episodes

First Aired: Apr 2010

7.4/ 10

Average Rating

Best episodeE1 · The Evidence 7.5

Season 12

16 Episodes

First Aired: Apr 2017

7.4/ 10

Average Rating

Best episodeE4 · The Alien Architects 8.0

Season 2

10 Episodes

First Aired: Oct 2010

7.3/ 10

Average Rating

Best episodeE3 · Underwater Worlds 7.6

#10

Season 13

15 Episodes

First Aired: Apr 2018

7.2/ 10

Average Rating

Best episodeE7 · Earth Station Egypt 7.6

#11

Season 15

12 Episodes

First Aired: Jan 2020

7.2/ 10

Average Rating

Best episodeE1 · The Mystery of Nan Madol 7.9

#12

Season 17

7 Episodes

First Aired: Aug 2021

7.1/ 10

Average Rating

Best episodeE1 · The Lost City of Peru 7.3

#13

Season 10

10 Episodes

First Aired: Jul 2015

7.1/ 10

Average Rating

Best episodeE8 · Circles from the Sky 7.6

#14

Season 14

22 Episodes

First Aired: May 2019

7.1/ 10

Average Rating

Best episodeE1 · Return to Antarctica 7.9

#15

Season 4

10 Episodes

First Aired: Feb 2012

7.1/ 10

Average Rating

Best episodeE6 · The Mystery of Puma Punku 7.8

#16

Season 9

12 Episodes

First Aired: Oct 2014

7.1/ 10

Average Rating

Best episodeE2 · Mysteries of the Sphinx 7.4

#17

Season 18

20 Episodes

First Aired: Jan 2022

7.0/ 10

Average Rating

Best episodeE20 · Return of the Egyptian Gods 8.1

#18

Season 8

8 Episodes

First Aired: Jun 2014

6.9/ 10

Average Rating

Best episodeE6 · The God Particle 7.7

#19

Season 5

12 Episodes

First Aired: Dec 2012

6.8/ 10

Average Rating

Best episodeE10 · The Von Daniken Legacy 7.2

#20

Season 3

16 Episodes

First Aired: Jul 2011

6.8/ 10

Average Rating

Best episodeE6 · Aliens and Ancient Engineers 7.6

#21

Season 7

8 Episodes

First Aired: Jan 2014

6.7/ 10

Average Rating

Best episodeE5 · Aliens and the Red Planet 7.1

#22

Season 6

11 Episodes

First Aired: Sep 2013

6.7/ 10

Average Rating

Best episodeE3 · The Anunnaki Connection 7.3