Every borough has at least a few subway stations that feature stained glass. But the Bronx seems to have more than any other, especially in the little stations at local stops for the 2 and 5 trains.
From “Latin American Stories” by George Crespo at the Jackson Avenue station:
One of several panels from the Prospect Street’s “Bronx, Four Seasons,” by Marina Tsesarskaya:
Part of Daniel Hauben’s The El, at the Freeman Street stop: