When did Arkéo Season 1 Episode 21 air?
Arkéo Season 1 Episode 21 aired on October 18, 2016.

How did the Rapa Nui people disappear? Is South Africa the cradle of Humankind? Who are the builders of Stonehenge? Peter Eeckhout travels the world, meeting with other archeologists to reveal recent findings and shed light on the enigmas of History.
For nearly 400 years, one of the largest pre-Columbian cities remained unnoticed, submerged in the rainforest. Known for its gold, “cuidad perdida” remained a mystery until a team of Colombian archaeologists rediscovered it in the late 1970s.
Direct answers for episode-level questions and details.
Arkéo Season 1 Episode 21 aired on October 18, 2016.
This episode runs for approximately 26 minutes.
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