| » » » Machu Picchu was in good condition after four centuries of rain… |
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Machu Picchu was in good condition after four centuries of rain forest growth when discovered by Yale explorer Hiram Bingham in 1911. Its longevity and resistance to landslides and settlement are result of extensive drainage systems built by Inca in 15th and 16th centuries.
Photographed by: Hiram Bingham |
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