The sad thing about Oblivion is that there are in-game books in Morrowind and previous games that describe the empire as being in the middle of a bamboo jungle. The vibe comes off as the Roman Empire in South East Asia.
Instead we got generic high fantasy with the occasional guy wearing Roman armor.
To be fair about most American’s never leaving the country, it’s a big country. You can spend literal days driving from one side to the other.
If you asked the average American, “What’s the furthest you’ve traveled?” That distance will most likely exceed the average distance traveled by someone from, say, Germany.
The German could have been to half a dozen countries, and never gone outside of Continental Europe.