The discovery of Machu Picchu / Hiram Bingham III -- Machu Picchu: mysterious royal estate in the cloud forest / Lucy C. Salazar -- The nature of Inca royal estates / Susan A. Niles -- Recent archaeological investigations at Machu Picchu / Alfredo Valencia Zegarra -- Scientific insights into daily life at Machu Picchu / Richard L. Burger -- Contemporary significance of Machu Picchu / Jorge A. Flores Ochoa.