John Hancock Center, Chicago-Skyscraper Case Studies: Introduction (1:38) --
Steel Structure (2:20) --
Inside the John Hancock Center (2:20) --
Structural Expression (2:33) --
Redefining the Relationship between Engineering and Architecture (3:19) --
Embracing Modernity (2:59) --
Custom Window Washing (2:50) --
John Hancock Center Windows (2:29) --
Leading Skyscraper (1:15) --
Credits: John Hancock Center, Chicago-Skyscraper Case Studies: Vertical City (Series 2) (0:26).
