Built high in the Andes on a seemingly impossible site, Machu Picchu stands as a testament to Early Native Americans and their ability to plan and build. How is it possible to create a mountain-top city complete with running water, drainage systems, food production, and stone structures so advanced they have endured for over 500 years? Authors Kenneth R. Wright and Alfredo Valencia Zegarra explain these and other mysteries, based on their original engineering and scientific research. A fascinating book, it is a must-have for civil engineers, archeologists, armchair travellers, and tourists alike. An illustrated walking guide and detailed map allow readers to become familiar with each building and pathway, and numerous photographs take readers on a breathtaking pictorial adventure.