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15 travel destinations being ruined by tourism

June 4, 2010, 11:55 a.m.
Machu Picchu

Photo: kudumomo/Flickr

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Machu Picchu

Perched high in the Andes Mountains of Peru, this "lost city of the Incas" remained hidden to the outside world until 1911, when historian and explorer Hiram Bingham was led there by local Quechuas. Since then, hundreds of thousands of visitors have flocked to Machu Picchu every year, threatening the fortitude of the ancient ruins. For this reason, UNESCO has recently considered putting Machu Picchu on its List of World Heritage Sites in Danger.