NaN/100 votesNaN/10(0)#1 - The Top Ten Extraordinary Discoveries
Season 21 Episode 1
Aired 2/7/2025
Ancient Aliens is counting down ten of history's most astonishing discoveries – breakthroughs that challenge traditional beliefs about human history. From a lost city hidden in the Andes to mysterious metal spheres that are not of this world and a sunken city that was said to be the home of the gods, could these discoveries provide proof of extraterrestrial contact?
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#2 - The Top Ten Mysterious Monoliths
Season 21 Episode 2
Aired 2/14/2025
Ancient Aliens is counting down the world's top ten most mysterious monoliths, from a 500-ton stone believed to represent an ancient UFO, to giant statues said to have been created with advanced technology, and ornate pillars that depict otherworldly visitors. Could these extraordinary standing stones provide evidence of extraterrestrial visitation?
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#3 - The Top Ten UFO Crashes
Season 21 Episode 3
Aired 2/21/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#4 - The Top Ten Unexplained Technology
Season 21 Episode 4
Aired 2/28/2025
No description available
Director: N/A
Writer: N/A
The Best Episodes of Ancient Aliens Season 21
Every episode of Ancient Aliens Season 21 ranked from best to worst. Discover the Best Episodes of Ancient Aliens Season 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...
Genres:DocumentaryMysterySci-Fi & Fantasy
Network:History
Episodes
4
Avg. Rating
NaN
S1
S2
S3
S4
E1
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Season 21 Ratings Summary
"The Top Ten Extraordinary Discoveries" is the best rated episode of "Ancient Aliens" season 21. It scored N/A/10 based on 0 votes. Directed by N/A and written by N/A, it aired on 2/7/2025. This episode is rated NaN points higher than the second-best, "The Top Ten Mysterious Monoliths".