Using it, I found the old monkey trails in Elmhurst. These were 'hidden' bmx trails, accessible from a hole in the fence near the Prairie Path (which I've highlighted in yellow). In my childhood, this network of trails, maintained by teenagers who like off-roading on their bikes, was mysterious and off-limits. Seeing it mapped so clearly is both exhilarating and disappointing.
Bing Maps a try - like its search, I didn't see much difference in quality compared to Google. One thing I really enjoy, however, is their bird's eye view mode. It offers perspective and image quality that really stands out from satellite images.