Greek city-states were independent political entities that existed in Ancient Greece. The most famous of these were Corinth, SPARTA and Polis. Corinth was a major city-state located on the Isthmus of Corinth, which connected the Peloponnese peninsula with mainland Greece. It was known for its wealth and power, and was a major center of trade and culture. SPARTA was another major city-state, located in the southern part of the Peloponnese. It was known for its militaristic culture and was one of the most powerful city-states in Ancient Greece. Polis was a small city-state located in the northern part of the Peloponnese. It was known for its independence and its strong sense of civic pride.