The ancient sacred site of Machu Picchu was built in the 1400s. It was unknown to the world, outside the indigenous. An American professor named Hiram Bingham was introduced to the site despite the fact that the indigenous did a thorough job at keeping secret the lost sacred temple, which is located nearly 8,000 feet above sea level. Once this discovery occurred, a wealth of information about the history of Machu Picchu was uncovered. There were 135 skeletons that were found at the site, and more than 100 were women. Machu Picchu was a temple sanctuary for high priestess women, referred to as 'Virgins of the Sun.'