And why does the Vatican have a sphere too?
Vatican Sphere
[edit on 7-1-2009 by Techsnow]
Koenig started work in 1967 in his barn in Bavaria, while the WTC was in the planning stages, and finished it four years later in time for the opening of the towers. Officially titled Große Kugelkaryatide (Great Spherical Caryatid) by the artist, New Yorkers soon nicknamed it The Sphere. It was meant to symbolize world peace through world trade, and was placed at the center of a ring of fountains and other decorative touches designed by trade center architect Minoru Yamasaki. It was set to rotate once every 24 hours, and its base became a popular lunch spot for workers in the trade center on days with good weather.