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ZIGZAG ZENITH
The John Hancock Center, also known by Chicagoans as "Big John", is one of the city's icons. The exterior members of the steel frame represent a tube while the diagonal members provide the structural stiffness and bracing support to keep it steady amid strong winds, as well as some critical structural floors that coincide with the intersections of the diagonals and the corner columns.
Olympus PEN Mini E-PM2 with M. Zuiko 17mm f/1.8
ZIGZAG ZENITH
The John Hancock Center, also known by Chicagoans as "Big John", is one of the city's icons. The exterior members of the steel frame represent a tube while the diagonal members provide the structural stiffness and bracing support to keep it steady amid strong winds, as well as some critical structural floors that coincide with the intersections of the diagonals and the corner columns.
Olympus PEN Mini E-PM2 with M. Zuiko 17mm f/1.8