When this hexastyle temple was built on a ridge during the reign of Roman Emperor Antoninus Fulvus Pius in the mid-2nd century, it was dedicated to Artemis. This twin sister of Apollo and daughter of Zeus was the mythological Greek deity of hunting and virginity. She was also the patron of the city. The Hellenistic temple measures 531 by 396 feet. These steps lead up to the platform and the chamber where the cella or inner sanctuary was previously located. The temple was excavated during the 1930s.