The Porta Urbica was a gateway to the fortress of Ortigia, built by Dionysius the Great. It was part of the city walls which, in addition to surrounding Ortigia, ran along the entire city up to the Eurialo castle.

Today it can be identified with the excavation in via XX Settembre.

What remains visible is the base of two quadrangular towers measuring over 8 meters on each side, which probably allowed access to a road that forked and connected the temple of Apollo and that of Athena.