Machu Picchu is one of the few surviving ruins of the Inca Empire. It is situated in tropical forests on the eastern side of the Andes Mountains. It stretches five miles across a ridge and sits on top of two earthquake fault lines. The Spanish invaded South America looking for gold. They killed the Inca people. They destroyed their cities, but they never found Machu Picchu. How much do you know about this Inca treasure? How many years was Machu Picchu inhabited? How do the walls of Machu Picchu "dance"? Who really discovered Machu Picchu? Where does Machu Picchu get its water? Find out more about this famed ancient city and amaze your family and friends with these fun facts. Ages 8 and up. All measurements in American and metric. Reading Level: 6.7 Educational Versions contain exercises designed to meet Common Core Standards. LearningIsland.com believes in the value of children practicing reading for 15 minutes every day. Our 15-Minute Books give children lots of fun, exciting choices to read, from classic stories, to mysteries, to books of knowledge. Many books are appropriate for hi-lo readers. Open the world of reading to a child by having them read for 15 minutes a day.