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Ancient Aliens S22E4 — Extraterrestrial Engineering

8.2

Ancient Aliens•Season 22•Episode 4

Extraterrestrial Engineering

8.2/10 · 20 votesFeb 5, 202642 min

Ranked #4 of 15 in Season 22•+0.3 vs season avg

Host Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of

Previous episodeE3 · Island of the Gods Next episodeE5 · UFO Hot Spots

Seasons22

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Season 22 Episodes15

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Skulls of the Gods

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Egypt's Lost Pyramids

Island of the Gods still

Island of the Gods

Extraterrestrial Engineering still

E4 8.2Now viewing

Extraterrestrial Engineering

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Cast16

Robert Clotworthy

Robert Clotworthy

Narrator (voice)

Giorgio A. Tsoukalos

Giorgio A. Tsoukalos

Self

Ariel Bar Tzadok

Ariel Bar Tzadok

Self

Jonathan Young

Jonathan Young

Self

David Childress

David Childress

Self

Erich von Däniken

Erich von Däniken

Self

Linda Moulton Howe

Linda Moulton Howe

Self

David Wilcock

David Wilcock

Self

George Noory

George Noory

Self

Philip Coppens

Philip Coppens

Self

Nick Pope

Nick Pope

Self

Mike Bara

Mike Bara

Self

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Episode Summary

"Extraterrestrial Engineering" is episode 4 of Ancient Aliens season 22. It scored 8.2/10 from 20 votes, ranking #4 of 15 episodes this season (season average 7.9). It aired on February 5, 2026.

Next: E5 · UFO Hot Spots Best of Season 22