here is a pic of the outer wall where the plane crashed last year. This is as of June 11 I believe, so if you look you can see the inner rings are not yet completed. I'm not sure of the status of the inner rings myself as I can't see them
This is actually the best pic I've been able to find of the outer wall w/o all the construction on the front of it.
The highway you see in front of it is where I drive by every day, and the small white dots down at the bottom is Arlington National Cemetary... The Gardens Of Stone.