"The Berlin Wall in the cold war and now - interactive."

The Guardian's "Photography then and now" is the perfect vehicle to chronicle the city of Berlin, then and now, as depicted in photos of the Berlin Wall, past and present.

Having visited Berlin 25 years ago, in 1989, just before the Wall's demise, and again in September of 2014, I confess that the anniversary of this pivotal event moves me deeply. The photos tell the story far better.

The Berlin Wall in the cold war and now - interactive

The city of Berlin will commemorate the 25th anniversary of the fall of the Berlin Wall in November. The wall split the city from 1961 to 1989 and became the iconic symbol of the cold war. Sean Gallup has photographed locations around Berlin today to match with archive images of when the city was divided