What year was the acropolis built?

Is the Stonehenge a natural or a cultural site? What does the Dashboard light shaped like the Lincoln memorial mean? Which continent includes the Atlas Mountains and the Kalahari Desert? What great lakes are in the Midwest region? What is the difference betwen dedidous forest and a conifrous forest? Why are locks needed on the st. Lawrence seaways? Where does the river roch begin? What do Nile crocidiles eat? How are supervolcanoes formed? Which 2 explorers led the expedition over the Rocky Mountains to the Pacific Ocean? How do sea fans eat food? How long would it take to boat from Miami to west palm beach? How can guinea pigs live in machu picchu? What a salinity? On mount everest do people make money? The effect of Niger delta militancy in Nigeria economy? What is one of the seven wonders of the world in South America? How old are the Rocky Mountains in western Canada? Who built the first pyramids in the Americas? Is colonial williamsburg a national park?