Final answer:
The ancient civilization associated with Persepolis is the Persians, symbolized by its monumental architecture and its status as the ceremonial capital of the Achaemenid Empire.
Step-by-step explanation:
The ancient civilization associated with the city of Persepolis is the Persians. Persepolis was the ceremonial capital of the Achaemenid Persian empire, founded by Darius the Great around 518 BCE. This city is renowned for its monumental art and architecture, including the Apadana, Throne Hall, Treasury, and numerous other palatial complexes. These structures reflected the imperial power and authority of the Persian Empire that dominated a vast territory, extending from modern-day Iran to Egypt, and from Asia Minor to parts of Greece and Central Asia.