Metropolis is just any Big City USA. Some writers and artists make it out to be New York, and I think that's fine.

While lots of Marvel characters live in New York, a lot of them also seem to treat it like Big City, USA. But not Spider-Man. His NYC often has a lot of character and personality, the same kind of personality and character that out of DC's cities, really only Gotham, Opal City, and Metropolis during the '90s specifically, usually have.

So if we're subbing out Metropolis for New York, I want it to be, basically, the vibrant and detailed New York City that Spider-Man lives in.