So I've recently been thinking about which real life countries the various ESO provinces are based upon, as they are all clearly influenced by real life environments and cultures. So far I've decided upon these:
Black Marsh
Mexico
I went with Mexico because I think the vast cloud forests that cover central America greatly resemble the swamps of Black Marsh. Plus Mexico was home to the Aztecs; an ancient culture that the Argonians are clearly based upon (just look at the architecture for example).
Cyrodiil
England
This is a photo of the Lake District in Cumbria, and it was actually a personal visit to this place that made me think of its semblance to the Imperial province with its rolling hills and blankets of woodland, dotted here and there with quaint villages.
Elsweyr
India
I personally think that Elsweyr has some serious Indian vibes. The fact that it has a mixture of both desert and jungle, the latter of which being the hunting grounds of tigers and other big cats, makes this seem quite likely.
Hammerfell
Egypt
Okay so when I say Egypt I really mean the Sahara Desert in general, though I went with Egypt because both the desert and the ancient ruins in that country are particularly Hammerfell-esque. The above image was actually taken somewhere in Algeria, but I couldn't help but post it due to its resemblance to Craglorn.
High Rock
France
I think it's safe to say that High Rock is clearly based off France, seeing as how the native Bretons were actual people who lived in that country. Plus I couldn't help but notice that the subregion of Gavaudon in Stormhaven sounds eerily similar to that of Gevaudan; a region in France that was once terrorized by a creature many people considered to be a werewolf. And what is there an infestation of in nearby Glenumbra? Exactly.
Morrowind
Indonesia
I think the above image speaks for itself.
Skyrim
Norway. Obviously.
Yeah, I don't think I need to go into detail on this one either. There's a reason why Skyrim is often referred to as "Norway Simulator".
Summerset Isles
Thailand
Okay, so this one was a little difficult. First and foremost I thought it should be somewhere tropical, and since the design of the Altmer has an obvious Far East influence I moved my search to Asia and eventually settled on Thailand when I saw the coastlines.
Valenwood
Brazil
Admittedly the first location I thought of when it came to Valenwood was Australia, due to its massive creepy-crawlies. However, I think Brazil is a better fit due to the Bosmer resembling the Indigenous tribes of South America more so than aborigines and the fact that Brazil, much like Valenwood, has a big portion of its landmass comprised solely of jungle.
So those are my choices for real life Elder Scrolls locations. I'd love to hear everyone else's opinions though.