How was the landscape changed after 9/11?

There was a big gaping hole in New York where the World Trade Center had stood and the New York skyline was changed forever. now there is a one world trade center where the twin towers had stood before

1. the taxes paid are used to the government in developing its country 2. its also used to build community centers where people would go to spend some valuable time with each other3. the taxes are may also be used to pay some public health sectorhope i'll be