But in the fertile, well-watered valley around Cusco, Inca farmers stood their ground. Instead of splintering apart and warring among themselves, Inca villages united into a small state capable of ...

In 1911, local farmers in Peru led American explorer Hiram Bingham to the ruins of Machu Picchu, an Incan city built high in the Andes Mountains, introducing the outside world to this architectural ...

this region was the heart of the Inca Empire. While many things have changed, the altitude of this region and the biodiversity of its ecosystem have remained the same, allowing farmers today to ...