Polis
An ancient polis often centered around a citadel, called the acropolis. Nearly always it had an agora (market) and typically one or more temples and a gymnasium.  Many citizens of a polis did not live in the central city but in the suburbs or countryside.  The Greeks regarded the polis as a religious and political association: while the polis would control territory and colonies beyond the city itself, the polis would not simply consist of a geographical area.