9/11 anniversary photos by Flickr usersLink copiedRead full article1 / 101World Trade Center TributeI visited the WTC Tribute Center in New York - an incredibly moving place, especially this room filled on every wall with pictures of the people who died in the attack.By Tracey Whitefoot, Copyright © 2011A collection of 10 stunning photographs from Flickr users aiming to capture the 9/11 anniversary.