Ancient Aliens
S21E04 The Top Ten Unexplained Technologies
In this episode of Ancient Aliens, a countdown reveals ten of the most incredible and enigmatic technologies throughout history. The journey takes viewers from the enigmatic golden spheres unearthed in Mexico to a revered wooden chest believed to connect with the divine, and an ancient burial site that appears to illustrate an astronaut. Could these extraordinary relics be proof of extraterrestrial encounters?
Season 21 Episodes
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The Top Ten Extraordinary Discoveries
The Top Ten Mysterious Monoliths
The Top Ten UFO Crashes
The Top Ten Unexplained Technologies
The Top Ten Secret Projects
The Top Ten Mysterious Mountains
Mysteries of the Aztecs
The Glowing Orb Phenomenon
The Legacy of J. Allen Hynek
The Volcano Factor
The Birdman Mystery
The Abduction Files
The Giants
Aliens In Our Midst
Britain's UFO Files
Mysteries Of The Norse Gods
Secrets of Japan