Building Skyscrapers on Chicago's Swampy Soil
Engineers once compared Chicago’s soggy soil to jelly cake. How did they build a forest of skyscrapers on it? 
March 4, 20150
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Show Notes
<p dir="ltr">Engineers once compared Chicago’s soggy soil to jelly cake. How did they build a forest of skyscrapers on it?</p><div> </div><img src="http://feeds.feedburner.com/~r/CuriousCityPodcast/~4/WAo1dNTrcAo" height="1" width="1" alt=""/>