About 70 km from the city of Cusco, Machu Picchu was forgotten and only widely known when archaeologist Hiram Bingham discovered in 1911.Machu Picchu was built around the year 1450 during the height of the Inca Empire. The wall is probably the most impressive point in the site. The rocks are stacked without adhesivesMachu Picchu was designated by UNESCO as a world heritage site in 1983
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