West Berliners at right watch East German construction workers erect a wall across Wildenbruchstrasse and Heidelbergerstrasse in West Berlin in August 1961. Built with barbed wire and concrete, The Berlin Wall, stretching for about 30 miles, was a Cold War symbol which separated East and West Berlin, preventing people from leaving East Germany. It stood for 28 years as a division between the Soviets and the Allies. The wall was torn down after Communism collapsed in 1989. (AP Photo)