This impressive city was hidden beneath the undergrowth until 1911 - before this, only a few Indians knew that it even existed. Many of the buildings are almost intact, surviving several earthquakes, which modern buildings couldn't handle. If you're in South America, you have to see Machu Picchu. It is a breathtaking sight to stand by the topmost houses and gaze across this mighty city. You can get there by walking over the mountains, by train or by helicopter.
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