By Matthew Zuk
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| Machu Picchu http://cdn.media.kiwicollection.com/media/property/PR000846/xl/000846-02-macchu-picchu.jpg |
The Incan Empire (circa A.D. 1150 – 1550)[1] produced some of the most impressive architectural feats not only in South America, but also in the entire world. Many of these structures have proven to be inexplicable enigmas and no one knows for sure how on earth they were built!
