Let me think for a sec. don't worry I know the answer.
Answer:
One example is painting of pharaohs, statues, and massive monuments.
Explanation:
One example is Egyptian Pharaohs. They themselves as rulers of their kingdom used statues to signify their absolute power over their citizens and slaves. Each pyramid was an architecture monument to their reign as Pharaohs. It displayed status and power in their reigns.
Rather than depend solely upon visual unity, an artist will sometimes create CONCEPTUAL unity by unifying the ideas in a work of art. :) Hope this helps