Thanks to a Reddit thread and these two photos, I shall henceforth refer to #Chicago as an island city. 馃槅
To clarify: Both of these highlighted sections are chunks of land in the city completely separated by the others with a river. You *cannot* enter them without crossing some kind of body of water.
Island city. I rest my case your honor.
A map of the west and south sides of Chicago with a black line highlighting the fact that much of this area is completely separated from the rest of the city by a river. You cannot reach it without crossing some kind of body of water.
A map of the north side of Chicago with a red line highlighting the fact that much of the north side of the area is completely separated from the rest of the city by a river. You cannot reach it without crossing some kind of body of water.