The historic Uptown Station in Chicago. Now known as Wilson on the Red Line, Uptown used to be a main stop on both the Northwestern Elevated as well as the North Shore Line interurban. In fact, the current building (the third station at Wilson Avenue) was built as a joint venture between the two lines, and featured multiple entrances for the two railroads. This sign is at the original entrance, and for many years was hidden behind advertising for a store that eventually filled the space.
Currently, Uptown Station is kind of run down-the fast food restaurant that was in this space has closed, as did the doughnut shop at the side entrance, and the interior isn't in the best shape anymore. But it does retain much of it's original architecture and fixtures, and is certainly worthy of preservation.