On November 9th, Berlin will celebrate the 25th anniversary of the fall of the Berlin Wall. For many, the Wall symbolized the Cold War and the horrors of Communism. After German reunification, much of the Wall was demolished and only a few sections remain today.
To mark the 25th anniversary, Berlin will install 8,000 gas-filled balloons, which will illuminate the night and trace the entire length of the Berlin Wall, all 15.3 kilometers. Then on November 9th, the balloons will be released into the sky. You can see the installation from from November 7-9th, 2014.