They're closer together than that in Chicago's loop, although I think 7-Eleven wins the density contest. There's one block that has two 7-Elevens on it and ther

They're closer together than that in Chicago's loop, although I think 7-Eleven wins the density contest. There's one block that has two 7-Elevens on it and there's another across the street from one of the two corners that doesn't have a 7-Eleven on it. (Interestingly, Google maps doesn't show all the locations when I pull up the relevant block.)