S21·E1 The Top Ten Extraordinary Discoveries
Synopsis
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?
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Frequently Asked Questions
When did Season 21 Episode 1 of Ancient Aliens air?
Season 21, Episode 1 ('The Top Ten Extraordinary Discoveries') originally aired on February 7, 2025.
How long is Season 21 Episode 1 ('The Top Ten Extraordinary Discoveries')?
The runtime for this episode is approximately 42 minutes.
What happens in Ancient Aliens Season 21 Episode 1?
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...
All Ancient Aliens episode ratings Season 21 Where to watch
Top-rated Ancient Aliens episodes
- S2E8 · Unexplained Structures ★ 9.2
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- S2E6 · Alien Tech ★ 8.6
- S2E4 · Underground Aliens ★ 8.6
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