Beautiful black and white photograph of the John Hancock Building during construction, designed by Skidmore, Owings & Merrill (SOM) Chicago, IL, in 1970 / captured by famous modernist architecture photographer Ezra Stoller / photo courtesy of Yossi Milo Gallery, New York
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hovercraftdoggy 
Wow, some people are just so brave.
Yikes. Great photo though.
It brings to mind the stunning B&W NYC skyscraper photography of Berenice Abbott, back in the 1930s…
Where was OSHA?
Tom/Kat, Carol, I’ve nominated you for the Sunshine Award. Your posts do bring sunshine into my life day after day after day. You can see your nomination here: http://davidkanigan.com/2013/03/27/paying-it-forward-with-sunshine/. No worries if you choose not to accept the award…just know that you are appreciated. Dave
thank you very very much :) !