Esperantujo

When two people are speaking Esperanto (an artificial?, international language) they are said to be "in" Esperantujo, although geographically they are in Spain, Russia, or Canada. So understood, Esperantujo may have two "inhabitants," or many more, and it is everywhere.

In Esperanto, there are three acceptable ways to say the name of a country (including the "fictitious" Esperantoland): -ujo, -io, and -lando (i.e. for Esperanto: Esperantujo, Esperantio, and Esperantolando). Esperantujo seems to be used more by the older Esperantists while Esperantio is used more by the younger. One of the reasons for this is because the Pasporta Servo uses the -io form.

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Links:

http://www.esperanto.org