Machu Picchu, The Citadel in the Clouds (Machu Picchu, La Ciudadela Entre Las Nubes)

Hidden in the Andes mountain range for close to 400 years, Peru's Machu Picchu has long been an incredibly famous South American tourist destination. After all, it's wonderful location, beautiful views and the advanced technology with which it was created (how were those rocks even transported up there?!) make it unique not only in Latin America, but the world. But was it just a temple for the Sun god, Inti, or was it something more? After all, there is evidence that leads scientists to bel...