I remember seeing a Reddit post about his a fee months ago, saying the Last City was based off a city somewhere in India or Nepal (?). I forget the name of the city though. Edit: found the post https://www.reddit.com/r/DestinyTheGame/comments/38nbqq/the_last_city_is_pokhara_nepal/?sort=confidence There's also a theory that its around Chile, but I'd like to believe its in Nepal.