Underground passageways leading to a temple’s central area are a feature typical of classical architecture that Herod’s builders incorporated in the Temple Mount. The interior of the Temple of Apollo at Didyma, in Ionia, shown here, contained two covered passageways flanking a broad set of steps. The steps in the Didyma temple led from the temple center (foreground) to a closed-off area at top that is thought to have been reserved for priestly ceremonies.