Fall of the Berlin Wall

East German police sprayed water on West Germans as they broke through the wall at the Brandenburg Gate in Berlin on Nov. 11, 1989.
"The fall of the Berlin Wall (German: Mauerfall), on 9 November 1989, was a pivotal event in world history which marked the falling of the Iron Curtain. The fall of the inner German border took place shortly afterwards. An end to the Cold War was declared at the Malta Summit three weeks later, and the reunification of Germany took place during the following year. Following the April 1989 dismantling of an electric fence along the border between Hungary and Austria, by early November refugees were finding their way to Hungary via Czechoslovakia or via the West German embassy in Prague. The emigration was initially tolerated because of long-standing agreements with the communist Czechoslovak government, allowing free travel across their common border. However this movement of people grew so large it caused difficulties for both countries. ..."
Wikipedia
NY Times: The Fall of the Berlin Wall in Photos: An Accident of History That Changed The World
YouTube: The rise and fall of the Berlin Wall - Konrad H. Jarausch, Fall of the Berlin Wall

Looking through the wire from the West to East Berlin on Stallschreiberstrasse in 1961.