Editor’s Note: Passing Wolf Point a second time as we started down the South Branch we first encountered the new Bank of America building and the Boeing Building, both with unusual cantilevered supports of their enormous office buildings above.  The Civic Opera House was next followed by tallest Chicago Building, Willis Tower.  We saw more skyscrapers built on air rights over the Union Station train tracks on the west bank, and then went by the west bank’s Old Main Post Office.  It’s a giant structure with a six lane superhighway running through its center and its basement once contained a federal jail.  Major redevelopment in going on in the South Loop neighborhood on the River’s east bank.  One early development there is by architect Bertrand Goldberg.  His curvilinear River City apartment and office complex hugs the River’s east bank.  We lingered there briefly before heading back north back towards Wolf Point.