Forum Investigated but not excavated. The Forum is at north of the Plan of Civita (that is the valley situated in the centre of thre hills). 171,68m long and 43,50 wide it has a greater dimension tha Old Ostia. At the north extremity of Forum have been located the Comitium, a square structure measuring 20x20. The Forum was paved with marble and surely ornate with statues and columns, embellishing and glorifying the Greatness of Rome.