For those brave enough to leave cook county, there is Hamburger Heaven just over the border in Elmhurst (north ave. and york road). The double-decker burgers speak to another time when every place had its own secret burger sauce and the patties were thinner than the bread. The prime attraction though is root beer,either alone or as soft-ice cream dunked float.
You order at one window, pay at another and eat in your car or by the bee infested picnic tables. development has long encroached the north/york intersection, but you still feel vaguely out of the way. the anachranisim of the place helps too.