The Berlin Wall fell nearly 25 years ago, and to commemorate that momentous event, Germany has commissioned a poetic art installation to mark the Nov. 9, 1989, anniversary.
From Nov. 7–9, a 9.5-mile (15.3-kilometer) stretch of what was once the Berlin Wall will be illuminated by 8,000 helium-filled white balloons made of 100 percent biodegradable organic latex. (The art and design studio WHITEvoid, which is producing the installation, focused on using environmentally friendly materials.) The balloons will be attached with special clipping devices on stands that use battery-lit LEDs to illuminate the balloons like ephemeral street lamps.

Photo by Daniel Büche. Courtesy of Kulturprojekte Berlin_WHITEvoid/ Christopher Bauder.
Designed from a concept by brothers Christopher Bauder and Marc Bauder, the Lichtgrenze (Border of Lights) installation will include historic video footage on screens planted in several gathering spaces along the ghostly trail of the former wall and a selection of stories about this painful piece of German history from Berliners who lived through it.

Photo by Daniel Büche. Courtesy of Kulturprojekte Berlin_WHITEvoid/ Christopher Bauder.
Late afternoon on Nov. 9, volunteer balloon patrons will ceremoniously untether the balloons.
Check out this video for an overview of the project:
The video below includes a split-screen depiction that includes a preview of the installation alongside historic video clips of what life looked like before the wall fell.