Podcast:99% Invisible Published On: Fri Aug 09 2013 Description: Chicago’s biggest design achievement probably isn’t one of its amazing skyscrapers, but the Chicago River, a waterway disguised as a remnant of the natural landscape. But it isn’t natural, not really. It’s hard to tell when you see the river, … Continue reading → Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and get exclusive access to bonus episodes. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.