The Roman gods aren't exactly copies of the Greek ones. That's a reductionist view point that is a nice "soundbite", but ignores the complexities of how cultures interact with each other.

But to be particularly coy, I would have to say the United States. Love us or hate us, the founders took inspiration from the Roman Republic and the Aeneid in particular. Much of the exploration and colonization of the New World took place in a lens composed of the Aeneid. Even the early American poetry by religious leaders was composed in Latin in the same meter as Greek and Roman epics. Besides, how else does the Apotheosis of George Washington make any sense if not due to the inspiration of Rome.