After the Punic wars with Carthage, Rome acquired many new lands that it did not have before.
During peace times it was easy to govern these areas but during war times it proved difficult.
Many would agree that the Roman Empire was truly one of the most superior and complex civilization of all its time.
Those who stood in its path suffered the brutal and bloody consequences and were shown little, to no mercy at all.
From the very beginning of its history to the chaos of civil war, the Roman Empire would rise stronger than any other, embrace hundred of cultures, and till the soil from which western civilization would grow.
Rome, I believe, with its complex architecture, optimistic military and godlike leaders were just a few of the many characteristics that contributed to its success and triumph.
To help establish such an empire and help it grow advanced and complex architecture was used.
As far as Roman Architecture goes, it is almost impossible to compare it with that of other nations, because the Romans applied architecture to so many varied purposes.
There was no certain official date when Rome was considered to fall. Rome influenced every civilization after and in a sense we are all Roman citizens.
The great Empire of Rome, the greatest power to ever rule the Mediterranean had fallen. Their faults in politics, economics and other things contributed to their fall.