“It seems that a civilization-wide catastrophe involving the “death” of all these cities occurred at approximately the same time, around 1500 – the time of the Spanish conquest. Yet the Spanish never conquered the region; they never explored or even penetrated these remote jungles.”

“It seems that a civilization-wide catastrophe involving the “death” of all these cities occurred at approximately the same time, around 1500 – the time of the Spanish conquest. Yet the Spanish never conquered the region; they never explored or even penetrated these remote jungles.”

— Douglas Preston