At its height, the Rome Empire essentially dominated Europe and the lands around the Mediterranean. In order to efficiently bind together an empire that spanned seas and mountains, the Romans divided their territories into administrative units called provinciae, or provinces. These provinces played a key role in the cultural, social, and religious development of Rome as an empire. These diverse cultures were influenced by the ways of the Romans as they in turn inspired and impacted the customs of Rome. The art of the provinces represents the unity of the empire while still incorporating and acknowledging the presence of local customs.