Watch Arthur C. Clarke's Mysterious World Season 1 Episode 5 Online
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- Subtitles: English
Mystifying geoglyphs, giant pictures covering large areas on the ground, appear across the globe, many created by ancient peoples. They only become recognizable at great distances or are situated away from the common sight of man. This episode addresses the questions surrounding these images and covers such marvels as the Cerne Abbas giant and the Nazca lines.
