is the most ancient of the Agrigento's temples. It was built in peripteral hexastyle (an architectural style using a single row of columns on all sides, and 6 frontal columns in the portico) but on the long sides it had 15 columns instead of the usual 14. There are 8 of this type of temple standing on the south side. The ruins clearly show that the temple was destroyed by an earthquake. To the south of the Temple of Hercules stands the Temple of Terone, a truly imposing sepulchral monument, made up of two superimposed sections: a nearly cubical podium and a kind of small Doric temple with false doors and angular Ionic columns.