Actually, Rome didn't really fall, it evolved from a pagan-based, highly evolved society, to a Christian empire that was exceeding successful. What is left of that today in concrete terms is the Vatican.
Some also see the USA as an extension of Rome, and if you look at the buildings in our capital, one might see why.
Rome was a republic once, before it took to having emperors. The USA is also a republic. We have a Senate and House of Reps, Rome had a Senate. The eagle was Rome's national emblem, as it is ours. Actually there are so many things from religion, to politics to art, architecture and even science that has its roots in Rome. Western civilization owes a great deal to the Romans, and even the Greeks before them.