The Inka were master farmers, builders, and planners. Living in the Andes Mountains, they farmed and built on steep slopes. In the Andes, water can be a destructive, unpredictable force. The Inka controlled water through careful study and engineering. From terraces for farming to royal palaces, the Inka built things to last. Learn how their ancient inventions are helping modern-day engineers develop solutions to modern-day problems with this fascinating...