Still, Bingham’s work at Machu Picchu did reintroduce the larger world ... which were irrigated via the city’s complex aqueduct system. Astonishingly, the Incas built it all without the ...

After four days of trekking the Inca Trail, I had just reached a pass where I had my first view of Machu Picchu. I thought I knew what to expect, but Machu Picchu is one of the few places in the ...