Tribute in Light 9/11 Installation Pictures

We kicked off the first unofficial week of Fall with Labor Day, and it didn't slow down from there. The love-filled Venice Film Festival continued on, the US Open was full of man candy, and New York Fashion Week festivities have begun. The royals got in on the action as well, as Kate's sis, Pippa Middleton, celebrated her birthday, and Princess Beatrice graduated from university. On a somber note, there were emotional tributes leading up to the anniversary of the 9/11 tragedy. See photos from the events of the week now.