Reimagining the World Trade Center.

• Position: Visions

SOME OF THE WORLD'S LEADING ARCHITECTS have unveiled designs for rebuilding Ground Zero, the site of New York's World Trade Center. As these three architectural renderings show, the proposals vary greatly. Some instantly recall the twin towers destroyed in the Sept. 11. 2001. terrorist attacks, while others envision a much different skyline. Four of the designs include what would be the tallest building in the world. One plan (above) boasts public gardens...