The Top Ten Extraordinary Discoveries
S21E1
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Ancient Aliens S21E15 · Britain's UFO Files
S21E1516th October 20251h8.5(2)
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.
Episode
S21E15 · Season 21 · 15 of 20
Aired
16th October 2025
Network
History