Midgar: China
Esthar: Sweden
Deling: Blatantly France
Balamb: New Zealand
Wutai: Obviously not Japan, I mean they're nothing like, are they?
Narshe: Germany
Figaro Castle: UK
Nibelheim: Switzerland
Costa del Sol: Spain
Junon: Russia
Dollet: Czech Republic
Icicle Inn: Greenland
Gold Saucer: United Arab Emirates
North Corel: South Africa
Fisherman's Horizon: Belarus
Rabanstre: Jordan
Mt. Bur-Omisace: Turkey
Jahara: Djibouti
Academia: New York
Nautilus: Vegas
Luxerion: London
Yusnaan: Italy
Limsa Lominsa: The Netherlands. Give it a decade or two, you'll see...
Ul'dah: Israel
Gridania: I don't think we have an area forested heavily enough for this without it being more of a jungle than a forest. Uhm. I'm going to go out on a limb and say somewhere like Papua New Guinea.
Eruyt Village: Bolivia