The Athenian Treasury (Greek: Θησαυρός των Αθηναίων) at Delphi was constructed by the Athenians to house dedications and votive offerings made by their city and citizens to the sanctuary of Apollo. The entire treasury including its sculptural decoration is built of Parian marble. The date of construction is disputed, and scholarly opinions range from 510 to 480 BCE. It is located directly below the Temple of Apollo along the Sacred Way for all visitors to view the Athenian treasury on the way up to the sanctuary. Pausanias mentions the building in his account of the sanctuary, claiming that it was dedicated from the spoils of the Battle of Marathon, fought in 490 BCE against the Persians. The Battle of Marathon can be seen in some of the images of the metopes which compare their victory to mythology. By using the founder of Athens, Theseus, to show the victories of Athens, the treasury established Athens as one of the most powerful, polis, city-states of Greece. According to archeological records, the Athenian treasury metopes display the earliest known presence of Theseus in a large-scale sculpture. Prior to this treasury, Theseus had been depicted on vase paintings, but never before on architecture. Although Herakles was also depicted in the metopes, the added heroic character showed the Athenian's increasing devotion to Theseus. The pairing of the two heroes was a metaphor alluding to the Battle of Marathon. The metopes show Athenian identity and how they viewed their enemies both foreign or domestic. Several other city-states built treasuries in the panhellenic site of Delphi. Among other firsts, the Athenian treasury was also the first Panhellenic sanctuary that was dedicated by Athenians. The building was excavated by the French School at Athens, led by Pierre de La Coste-Messelière, and reconstructed from 1903 to 1906. The structure is still visible in situ, although the metopes are reproductions; the originals are kept in the museum of Delphi. Mythology and the metopes The main characters of the metopes are from common Athenian mythology showing these heroes undergo their many trials. The metopes show Theseus, the mythological founder and king of Athens. His mother, though human, was possessed by Poseidon at the time of conception. The labors of Theseus began in order to claim the throne as he travels through the six entrances to the underworld. Each labor is depicted in the form of a metope, his strength metaphorically showing