3. Man placing lampposts on line where wall once stood
4. SOUNDBITE (German) Moritz van Duelmen, head of light installation project:
"We are preparing a large light installation simulating the former Berlin wall. This installation divides the city on a path of 15 kilometres. We want to show all Berliners but especially young Berliners, who haven't experienced the wall, where the wall was. We also want to give visitors the chance to experience it"
5. Chain of lamps along river Spree the tops of which will inflate and be released
6. Chain along the river Spree
7. Top of lampposts covered with plastic bags
8. Pan of lamps along river
9. Top of lamppost with German flag in the background
A 15 kilometre (nine-mile) chain of lamps along the former site of the Berlin Wall were being prepared on Thursday to mark the upcoming anniversary of events which brought down the Cold War's most potent symbol.
The lampposts will be topped by illuminated balloons on Sunday.
The balloons will be released into the air early Sunday evening, around the time on November 9, 1989, when a garbled announcement by a senior communist official marked the beginning of the end for the wall.
Moritz van Duelmen, head of light installation project wants to give everyone a sense of how the city used to be.
"We want to show all Berliners but especially young Berliners, who haven't experienced the wall, where the wall was. We also want to give visitors the chance to experience it," he said.
Germany is celebrating the 25th anniversary of the night the Berlin Wall fell, a pivotal moment in the collapse of European communism and the start of the country's emergence as the major power at the heart of a reunited continent.
The opening of East Germany's fortified frontier capped months of ferment that brought Poland's first post-communist prime minister and saw Hungary cut open its border fence.
The hardline leadership in East Berlin faced mounting pressure from huge protests and an exodus of citizens via other communist countries.