We visited the 9/11 Memorial soon after it opened to public on Sep 12, 2011. These pictures were taken then.
I’d like to quote what Barrack Obama, President of the USA, said on the occasion:
When people visit the 9/11 memorials in the future, they will know that nothing can break the will of a truly United States of America. They will be reminded that we are not perfect, but our democracy is durable, and that democracy — reflecting, as it does, the imperfections of man — also gives us the opportunity to perfect our union. That is what we honor on days of national commemoration — those aspects of the American experience that are enduring, and the determination to move forward as one people.