Climb high into the mountains of Peru with Miss Cam, Nate, and Emma to discover Machu Picchu — a whole city of stone built by the Inca people among the clouds, more than five hundred years ago. Curious kids ages 4–10 will learn how the Inca fit giant stones together so perfectly that you can't slide a piece of paper between them — with no cement at all — and why their walls are still standing after centuries of earthquakes. A true, respectful story celebrating the brilliance of the Inca, whose Quechua descendants still live in those mountains today. One of the New Seven Wonders of the World. Turn your imaginations ON!