No one had bothered to make maps of them or study them in ... There are many sites, however, where the stone abutments which once held Inca bridges remain in place. I would say those sites ...

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They then employed ground-penetrating radar to make a map of the ... Renzo Gomez Vega. Inca builders constructed the so-called Chincana by digging a ditch, lining it with stone walls and covering ...