The correct answer is:
Athens and Sparta
Athens, capital of Greece and its largest city. During Ancient Greece Athens was a powerful city-state, known for being center for the arts, learning and philosophy, home of Plato's Academy and Aristotle's Lyceum. The heritage of the classical era is still evident in the city, represented by ancient monuments and works of art, the most famous of all being the Parthenon, considered a key landmark of early Western civilization.
Sparta was a prominent city-state in ancient Greece. In antiquity the city-state was known as Lacedaemon, while the name Sparta referred to its main settlement on the banks of the Eurotas River in Laconia, in south-eastern Peloponnese. Given its military pre-eminence, Sparta was recognized as the leading force of the unified Greek military during the Greco-Persian Wars.