Sunday marks the 25th anniversary of the fall of the Berlin Wall. AP News has a great site about the fall with interesting images and original news stories.
The Washington Post has "stunning" before and after pictures, along with a crossword puzzle testing your knowledge of the Berlin Wall.
Below, NBC News shows 8000 lighted balloons along nine mile length of the wall. And below that is a BBC clip clip explaining the rise and fall of the wall in 60 seconds. Finally, you can read another excellent summary from the Independent.