In Slovakia there is a sort of "intentional community", I guess you'd call it. I've never been there, just heard about it from a cousin-in-law. Hopefully sometime I'll have a chance to drop by there...
How about this one? It's a small EcoVillage in its core establishment phase (though the food production and land fertility issues have already been taken care of), but the people managing it (and the climate) are awesome, and you can buy shares of it and stay permanently, or buy mini-shares to stay for some time every year, if you're looking for something like that.
Oh, and if you want, you can work (not for free) at building the EcoVillage. Take a look at this: IntegralPermaCulture.com