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Megalithic monuments linked together by electromagnetic energy... Prehistoric ruins arranged across vast distances in straight lines... And advanced mathematics carved into landmarks more than 5000 years ago. Were ancient man's spectacular structures built by humans alone? Or do they bear evidence of being designed - and interconnected--by otherworldly visitors?
First Air Date : Apr 20, 2010
Last Air date : Mar 05, 2026
Episode : 285 Episode
Season : 22 Season
Runtime: 42:60 minutes
Studio: History
Country: United States of America
