Forgive me for that.
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At a location that looks it might be the train station where Superman killed Zod in Man of Steel, now closed and condemned, and Batman’s there looking for something and holding a large object.
A stylized question mark spraypainted on one of the pillars has some fans wondering whether this could be in Gotham and that could be a nod to The Riddler. Zooming in closer seems to back that up a bit, since the paint definitely appears to be green or green-ish.
The coloring and stylization of the question mark don’t seem to match any of the graffiti around it, either, probably lending more credence to the idea.
All around, it’s hard to avoid the impression that it might be a wink and a nod to one of Batman’s most recognizable rogues.