Thread: CHICAGO | 680 North Rush | 752 FT / 229 M | 64 FLOORS | NEVER BUILT
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  #38  
Old Posted Nov 15, 2005, 2:01 AM
HK Chicago HK Chicago is offline
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Join Date: Aug 2001
Location: Chicago, IL
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I'd assume the screen at the top hides a mechanical penthouse that's ~10' tall, if not taller... so the roof and structural height are probably the same height.