What cities this Hellenistic kings use to model for all other cities?

Hellenistic kings often used Athens, Alexandria, and Pergamon as models for other cities. Athens was renowned for its cultural and intellectual achievements, while Alexandria was celebrated for its cosmopolitan character and the Great Library. Pergamon exemplified architectural grandeur and urban planning, with its impressive Acropolis. These cities served as benchmarks for governance, culture, and civic life across the Hellenistic world.