"Machu Picchu is a UNESCO World Heritage Site, both cultural and natural. Since its discovery in 1911, growing numbers of tourists visit the site yearly, reaching 400,000 in 2000. As Peru's most visit
A UNESCO World Heritage Site recognized for both its cultural and natural significance, it has drawn increasing numbers of visitors since its rediscovery in 1911, reaching 400,000 annually by 2000. © young shanahan from Bogotá, Colombia, CC BY 2.0, via Wikimedia Commons

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