The Temple of Isis consists
of a cell on a high podium with a staircase on its front. In front of
it there is a sacrificial altar. On the side of the altar there is a temple-shaped
entrance which leads to a reservoir that used to contain the sacred
water of the Nile.
A large hall behind the temple was used as meeting-room
by the initiates. The sanctuary was damaged by the earthquake of 62 A.D.
and restored by Popidius Celsinus
Ampliatus, who in return obtained the title of decurion
for his six-years-old child Numerius.
Carried out in the eighteenth century, the site was one of the first to
be excavated. Visited even by Mozart
when he was only 14, it inspired him to compose the "Magic
Flute".