A couple times, yeah - visited a place called Mobius.

[He can’t quite help the puzzled frown on his face, because he actually doesn’t know a whole lot of the fine details about his own home. Those who did know are long dead, he is quite certain.]

I think there were other dimensions, but not quite the same... I know the Miracle Planet was in some other dimension most of the time and only appeared once a month. I’m not a good person to ask about that kind of thing though.