There were many factors that allowed the Byzantine Empire to last a 1000 years after the end of the Roman Empire which include the fact that Constantinople, the capital of the Byzantine Empire, was protected with walls that lasted almost the entire 1000 years, making Constantinople, and the center of the empire's economy/culture impervious to invaders.
C. wanted a strong central government
If I am correct that would have to be The MEDITERRANEAN and the MIDDLE EAST.
Sculptures were the big thing in ancient Greece. Specifically the ones of men and women. You have probably seen pictures of them before they are called Kouri. Materials used in Ancient Greece influence today's art. Such as stone and marble. Also in Greece, they used a lot of geometric patterns and some would say abstract.