World Famous John Hancock Skyscraper show the total of 6 'X's on all faces of elongated cubes or retangular blocks, July, 2010

This is the world famous John Hancock Building in Chicago, Illinois. This tower is over 100 floors high and has the same structure as the World Trade Center's Twin Towers, except the external surface has the "x" cross-bracing or Cross-Trussing. A lot can be learned about the Twin Towers from an in depth study of this building, which I am in the process of researching. Essentially all building over 40 stories built in the USA have the same internal structure as the Twin Tower, meaning thers are many dozens of Towers that can be looked into for research purposes and applied to the gargantuan strength of the WTC TTs/

Chuck Boldwyn