Alternate Worlds? Options

I'm curious to know what the people here think of when in terms of "alternate worlds." As an example of what I mean, in a number of books and shows, the main character is summoned by one way or another into a completely new realm. One that tends to be heavily based on fantasy and magic. A simple example would be "The never-ending story."

Do you guys think completely alternate realms like these exists? Places where magic is closer to a basis of life than just a taboo hobby.. Personally, I think it would be really cool to have such places, but I highly doubt anything of the sort really does exists. (Of course there is no real way of answering both until someone here whips up a teleportation spell of some sort! Ha.)

Maybe, but here's the kicker--if we DID live in a world like that, we'd be so inured to it that it would seem as drab and boring as day-to-day reality does to us now. The psyche can get used to anything. The trick is to shock it out of complacency from time to time to keep it active and awake.