From above the rust-colored desert plains of Peru, a mysterious tapestry of geometric shapes and animal figures appears on the ground, etched in white. The geoglyphs scratched into the barren ground of the Rio Grande de Nasca drainage basin are the Nasca Lines, one of archeology’s greatest mysteries. Theories of their purpose put forth over the years have included alien-constructed landing strips, a giant astronomical calendar, ceremonial pathways to the sites of sacred rituals, and markers of subterranean water sources. Read more
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