The Garden of Eden is one of the earliest -- an earthly paradise where man need not work for his food (is that a fried egg floating in the sky?) -- a place of innocence where sin is unknown.
The Land of Cockaigne -- a fantasy from medieval times -- was a place of abundant food and drink and idleness -- the dream world of a hard-worked, always hungry peasantry.
"The Big Rock Candy Mountain," -- the dream of a Depression-era hobo, complete with cigarette trees, lakes of stew, and whiskey trickling down the rocks -- is a direct descendant of Cockaigne.
The Heaven of the Bible, with its streets and gold and pearly gate is yet another sort of utopia -- for some. (In Mark Twain's Letters from the Earth, Book II, Twain points out that this sort of Heaven is a lot like an eternal church service -- and many who pay lip service to the idea of Heaven as a goal manage to avoid the weekly services here on earth.)
Utopias have fascinated many a novelist -- from Hilton's Lost Horizon ( in my opinion, a much better book than the films it inspired) telling of the hidden valley of Shangri La . . .
. . . to James Gurney's wonderful land of Dinotopia -- where intelligent dinosaurs and humans coexist. These are wonderfully imagined and gorgeously illustrated children's books that more than a few adults will adore.
In fact, many children's books are set in utopian or near-utopian lands -- Oz and Narnia come to mind.
Here's one of my favorite fantasy lands -- Islandia is a strangely compelling work to me -- I find myself wanting to revisit it now and then just because I love the simplicity of this utopia -- a land of isolated farms when travel by horse or boat is the norm, a land that keeps itself apart from 'progress.' a land where manual labor and handicraft is valued -- as I said, this is a utopia that speaks to me.
What's your idea of a perfect place --your own ideal utopia?