Like the Subject line says. :)
Thank you.

This is more of a guess than an answer but seeing as the heroes who turned up were all American, I'd probably say one of the big cities - New Roscoe or New York, most likely.

Ah, page 4: New York City. Sorry all, I missed that when I first looked…

Indeed, it's NY. On the first page I drew, Aria can see the smoke from her UN office.

Has anyone made a map of HA or HU landmarks or cities? New York exist but so does fracture city, (am I saying the city name right?) it would be nice to know where fictional one are at. This way I know where to place my story. Thanks a bunch.

I don't think there's a map… yet.

I did up a simple map for Fracture City since I needed to work some stuff out for plot purposes.
http://www.cartographersguild.com/sci-fi-modern-mapping/27286-frankston-aeon-city.html
It's on the coast but beyond that I didn't have a specific location in mind for it - and may not ever lock that down unless I need to. Noone knows exactly where Gotham City is, after all…