Tourists posing in front of the Berlin Wall at the Brandenburg gate in Berlin in this June 6, 1989 (left) and a general view of the Brandenburg gate.
A West Berlin police officer stands in front of the concrete wall dividing East and West Berlin at Bernauer Strasse as East Berlin workers add blocks to increase the height of the East German barrier Oct. 7, 1961.
West Berlin police
Sylvia von Scheidt reacts at the Berlin Wall Memorial at Bernauer Strasse in Berlin Aug. 13. Germany marks the 50th anniversary of the day communist East Germany sealed itself off behind the Berlin Wall. Germany had been divided into capitalist western and communist eastern sectors after the end of World War II. At the height of tensions between the United States and the Soviet Union, the East German regime started building the wall through the capital on Aug. 13, 1961.
Visitors pass a camera through a hole in a remaining part of the Berlin Wall at the Documentation Center for Nazi Crimes in Berlin .