Here we have 3 of the most well known sites in North America. Chichen Itza and Teotihuacan are among the largest pyramids and archaeological sites in the Americas. Cohokia mound is one of the larger sites in North America. While from 3 different cultures and time periods, they create a 30-60-90 triangle which is aligned almost directly north on one side. The longest side is over 1400 miles long.
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Amazon Ancient Aliens Atlantis Bill Donato Bimini Bolivia Carmen Boulter Chichen Itza Christopher Dunn Cohokia David Grann Edzna Egypt Glastonbury great pyramid green castle Greg Little Hugh Newman James Churchward John Major Jenkins Lake Titicaca lost continent Louisiana mounds Mediterranean Megaliths Mu NEARA New England Plato Puma Punka Pyramids Richard Cassaro Robert Schoch Spain stonehenge Teotihuacan Tiahuanaco