The Gaslight Justice League:
http://www.sillof.com/C-Gaslight.htm
Take Gotham by Gaslight, and extend it to the entire Justice League. Very cool.
The Gaslight Justice League
The Gaslight Justice League
"Oh, I'm so sorry. Forgive me. I'll try and be a tad more quiet as I desperately struggle to break free -- and save all creation!" -- Doctor Strange