The temples are: The Valley is also home to the so-called Tomb of Theron, a large tuff monument of pyramidal shape; scholars suppose it was built to commemorate the Romans killed in the Second Punic War.

Due to its good state of preservation, the Temple of Concordia is ranked amongst the most notable edifices of the Greek civilization existing today.

The spaces between the columns were closed, while 12 arched openings were created in the cella, in order to obtain a structure with one nave and two aisles.

It dates to c. 450 BC, measuring 38.15 x 16.9 m: it is in Doric style, peripteros six columns wide by thirteen long, preceded by a pronaos and opisthodomos.

The building was damaged in the fire of 406 BC and restored in Roman times, with the substitution of marble tiles with ones of clay, and the addition of a steep rise in the area where today can be seen the remains of the altar.

Nearby are arcosolia and other sepultures from Byzantine times, belonging to the late 6th century AD renovation of the Temple of Concordia into a Christian church.

The building, with 20th-century anastylosis, measures 67 x 25.34 m, with a peristasis of 6 x 15  Doric columns and a cella with pronaos and opysthodomus, is located over a three-step basement.

It is the first example (later become common in the Agrigento temples) of pylons inserted between the pronaos and cella, housing the stair which allowed inspections of the roof.

On the other side of the road running through the Golden Gate of the ancient city, is a plain commanded by the huge Olympeion field.

The Olympeion complex' main attraction is the huge Temple of Olympian Zeus, which was described with enthusiastic words by Diodorus Siculus and mentioned by Polybius.

[5] Today it is reduced to ruins due to destruction begun in antiquity and continued through the 18th century, when the temple was used as a quarry for the port of Porto Empedocle.

Near the south-western corner of the temples is a small edifice (12,45 x 5,90 m) with two naves and a deep pronaos, a double entrance and what has been identified as an altar.

At the western tip of the area in which the Temple of Concordia lies, are parts of a late-ancient or early-medieval necropolis, constructed on existing cisterns.

For his contributions to archaeology he was made an honorary citizen of the city of Agrigento and was granted in 1928 the rank of Commander of the Order of the Crown of Italy.