The Freedom Tower...

http://www.msnbc.msn.com/id/3757111/
The tower will be "not only beautiful but an opportunity" to make statement about the environment, Childs told "Today".
The cable suspension structure would create an open area above the building’s 70 floors of office space, and house the wind turbines, which could provide 20 percent of the building’s energy.
I think I like it!
