Fall of the Wall: 20 Years Today

Today marks the 20th Anniversary of the Fall of the Berlin Wall. Here is a video showing the incidents that led to its collapse, and if you didn't see it, we recommend you watch the BBC documentary about the Wall which you can see here.

PS: Here's a link to the article from The Times reporting events from that day and another explaining why celebrations will be slightly muted as 9 November also marks the anniversary of Kristallnacht.
PPS: Here's footage from the BBC reports from that night, and explanation from Brian Hanrahan about its significance (Recommended!)