The Forum is the nerve centre of life in a Roman city: it is the main meeting place where political-administrative, economic and religious life takes place.

The forensic enclosure is organised around a large open space, surrounded by one or more surrounding porticoes, around which the most significant buildings are distributed: the Curia, dedicated to political and administrative uses; the Basilica, where legal matters are resolved; and the main Temple of the city. Next to them are the taverns, premises dedicated to commercial uses, and surely there would be other buildings related to the administration (archives, coinage, etc.).

This monumental ensemble is completed with various ornamental elements (sacrificial aras, honorary statues, triumphal arches, etc.) of which in the case of Caesaraugusta we know some through their representation on the coins of the city.