What did the Romans invent to build the Assyrian buildings?

At the time of the Assyrian Empire, Rome was an insignificant city in Italy which had no influence whatsoever in the east. Rome was learning from its mentor the Etruscans.

The Assyrians would design their architectural buildings with not only size and strength but also beautiful art. Some of their buildings still stand and are affected by all the wars in the middle east and mainly the wars in Iraq. The museums have also been looted, some thousand of years old artifacts are still being sold on the black market. Priceless artifacts that are some of the oldest in the world have been stolen. I feel bad for the Assyrians!