You have to anticipate closely to ...

You have to anticipate closely to see the similarities between Chicago's 37-year-old Prudential Building and its strange adjoining sibling, Two Prudential Plaza.

To be indisputable the 64,story Pru II features vertical ribbons of granite that compare the limestone piers of its predecessor. The recent building's punched windows are also reminiscent of those place on the older, 41 -story office building.

moreover the two buildings are really of vastly different heritages. The rectangular, 11 million-sq.-ft. Pru I belongs to an era when the Miesian "les is more" principle held a virtual