Read two passages and answer the questions that follow Machu Picchu is an ancient city in Peru. Constructions of the city started in 1450. The city covers about 13 square kilometers. For centuries, the city was buried in the jungle and was not discovered until 1911. Today, Machu Picchu is one of the most famous tourist attractions in all of South America. The Great Wall of china is the longest structure ever built . Much of what exists of the wall today was built during the Ming Dynasty in the late 1400s, although parts of the wall are much older and go back to around 200 B.C. The wall is about 11 meters high. The main part of the wall stretches for about 3,400 kilometers. *Questions : 1. When was Machu Picchu built ? …………………………………………………………………………………… 2.When was it discovered ? ………………………………………………………………………………….... 3. What is the longest manmade structure ever built ? …………………………………………………………………………………… 4. When was the wall first built ? ………………………………………………………………………………… 5. How long is it ? ……………………………………………………………………………………