This year we commemorated a decade since the the terrorist attack of 9/11. In that day, people died, in that day, the war on terrorism began, in that day, New York people witnessed the Hell as they never thought they would. The most powerful pictures of 9/11 are a way of remembering and of making sure that the victims will not be forgotten. These are 10 of the most impressive images taken on Ground Zero on that awful day: