Arendelle is the one with the ice queen, right? I've heard of that. And definitely Neverland. I'm friends with Captain Hook's son, so yeah, heard a lot about Neverland. But yeah. They aren't so much other realms as they are kingdoms where I'm from. Though Neverland and Wonderland might be, they're a little weird.
I mean, Hades is my dad, so I've got weird godly relatives to consider. Though I did meet Hercules and his family once. He was really nice, but I don't think he guessed we were related. And I didn't tell him, because my dad did hold his wife's soul hostage, so...best not to bring that up.