Berlin, Germany – On Sunday, November 9th, Germany celebrated the 25th anniversary of the fall of the Berlin Wall. Built in 1961, the concrete barrier divided the city in a severe attempt to keep East Germans from escaping the Communist regime. After twenty-eight years of struggle, the country was finally reunited in 1989.

In commemoration of this historic event, many events took place in Berlin throughout the weekend. The city strived to remember its past while continuing to look ahead toward a brighter future.

One of the most touching remembrances was Lichtgrenze 2014 (or Lightborder 2014), a temporary 9 ½ mile installation of illuminated balloons. For three days, these 8,000 balloons re-divided the city over the path of the former wall. The installation reminded Berlin residents of the brutality inflicted by the imposed concrete boundary while simultaneously lifting their hearts in a joyous conclusion. As the Berlin State Orchestra performed Beethoven’s Ode to Joy, the luminescent balloons were released one by one into the air followed by cheers from the crowd.

See more images of the installation at The Atlantic.