Who doesn't recognize this site?
Machu Picchu is centuries old, a fantastically preserved site of 32,000 acres of houses, temples, staircases, fountains, plazas and 600 agricultural terraces.
Re-discovered by Hiram Bingham in 1911, explored and studied for decades, the Historic Sanctuary of Machu Picchu is a UNESCO World Heritage Center. It is the most visited site in Peru, and the number of visitors poses an environmental problem to the 500 year old ruins. As many as 2500 visitors a day, walking over the site, sitting on walls and leaving sweaty palm prints on the rock walls, threaten the ruins. UNESCO recommends cutting back on the number of visitors per day, even though the income from visitor fees adds millions to Peru's economny.