Here's a nice clear pic of the Chicago Museum of Science and Industry, before they turned that parking lot these people are walking across into a pond, and went to underground parking. The building itself still looks like this today.
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1959-1980 Pontiac Window Sticker Reproductions : http://www.pontiacwindowstickers.com
My Bio: I am currently writing articles for POCI's Smoke Signals magazine and enjoy promoting and discussing the history of the Pontiac Motor Division.