Engineers do something that people say how they did it. When we see ancient engineering work, even engineers with the most modern skills and tools say how they did it and even say aliens did it. I started to visit engineering marvels in the world to learn their wisdom and encourage students to be more creative and innovative. One of our alumni, Kenneth Wright, did pioneering work on Machu Picchu. He inspired me to look into old engineering work and document it for future engineers.