This image comes from the 4th Avenue subway station offices at night,(served by the F and (for now) G lines. The 4th Avenue subway station is one of those points in the MTA system that gives a sense of how interconnected a railway the subway is. Above street level is a wide set of four tracks and two platforms, then two stairs below you have the underground R,W (and sometimes N & D lines).
The next Manhattan bound station, Smith–9th Streets has the best view in the subway system and is the highest altitude station but this picture shows a rare view too. Those upper windows with decades of graffiti are yet to be buffed but somehow illuminated and the are part of former offices of the old IND transit company. I've been using that station since the 70's and I've never seen those windows lit up. I'm wondering if it has to do with the renovations of these stations that is going on for the next few years.
Two sites I love and have never given enough credit to: www.forgotten-ny.com and www.nycsubway.org provide more details about this station situated at the bottom of Park Slope, such as the fact that it's a viaduct, level in it's construction, although it looks like a bridge, because the west end is elevated and the east goes straight into the hill of Park Slope which rises around it.
The subway makes for an appropriate "Photo Wednesday" since I've been seeing a whole lot of subway lately.