Travel to the Peruvian jungle high in the Andes Mountains to explore the sacred Inca city of Machu Picchu in this episode of Time Scanners. Using cutting edge, 3D laser scanning technology the team is on a quest to solve the mysteries of Machu Picchu. How did the Inca build a city atop a mountain ridge? How were the terraces constructed? And how did they supply water to the city?