I found an intriguing hint about the locations of Metropolis and Gotham in Superman 354 (published in 1980). The first panel of the second page reads as follows:
Look--down from the sky--gaze in wonder at the vast 21st century city of Megalopolis! Stretching for hundreds of miles along the eastern seaboard, it encompasses the former cities of Boston, New York, Philadelphia, Metropolis, Gotham, and Baltimore!
The real life cities are all mentioned in northeast-to-southwest order. If the two fictional cities were to follow that pattern, it would put Metropolis right about where I live! Philly is northeast of me; Baltimore is to my southwest. One can almost draw a straight line to connect the three locations.
I realize that this passage is only suggestive at best, but I must admit to being amused by the thought that I might have been living in Metropolis all along and never even known it.
Maybe I should be looking up in the sky more often...
Joy,
Lynn
