Temple of the Dioscuri (Castor and Pollux) in Agrigento was built in the middle of the 5th century BCE. The preserved four columns prove that they were made in the Doric order. The building had six columns on both sides; of the other two, thirteen.
Dioscuri were twins of divine origin who were worshipped in ancient Greece and Rome. According to Greek mythology, they took part in the Argonaut’s expedition, and after their death, Zeus (Jupiter) placed them in the sky as a constellation of Twins.
The temple is located in the so-called The Valley of the Temples in the central part of Sicily, in Agrigento (Roman Agrigentum, Greek Akragas).