A couple dressed in a typical Inca attire participates in a practice session atop of the Inca citadel of Machu Picchu on April 19, 2011, in preparation for the 100th anniversary ceremony celebrating the discovery of the site, to be held on July 24, 2011. Machu Picchu, one of the New Seven Wonders, was discovered by American adventurer Hiram Bingham, who sent thousands of artifacts to Yale University, which has recently started returning them after almost a century of appropriation. AFP PHOTO/AURELIO ALEJO (Photo credit should read Aurelio ALEJO/AFP/Getty Images)
