Board Thread:Questions and Answers/@comment-5823053-20140115161842/@comment-1038387-20140115162807


 * There's Earth 2, home of the Wonders of the World.
 * There's Earth 3, home of the Crime Syndicate
 * There's Earth 23, home of President Superman

There have also been stories published during the New 52 that took place on Earth-16 and Earth-40.

For steampunk, the closest we have is JLA: Age of Wonder.