I know it's a bit late, but I have recently been starting a little project. Making the One World Trade Center, the other buildings in the World Trade Complex, and the memorial pools and building.

I used MCEdit to clear a big space, and a flat stone ground. After that, I have been working on it, in Creative.

So far, I have completed the One World Trade Center, and I am working on the Memorial Pools. After that, I plan on starting the other buildings.

Additional Notes

Sadly, you cannot go inside the One World Trade Center, neither with the other buildings. I will most-likely make the Memorial Building open.

Pools finished!

All the other buildings finished (Including the Memorial Building)

Adding trees, and other stuff.

I plan on adding the Transportation Hub entrance.