Typical for this area are gravestones in the form of door, symbolizing the entrance to the underworld. A lot of these are on display near the temple. Most of them are from the second century AD and on inscription mainly mention the deceased and the founders of the stone. Symbols indicate who was remembered: eagles, lions, bulls for men for instance.
On the picture: A double gravestone, for a man and his wife. The space above the ‘door’ on the right side is decorated with an eagle (a male symbol), while the left counterpart bears the image of a basket, filled with wool – which is a female symbol.
Such double gravestones are rather uncommon in Anatolia, and seem to fit in a late-Phrygian tradition; palmettes and volute-like curls appear on Phrygian rock monuments (6th century BC) too.
Correspondent: J.M.Criel, Antwerpen.
Source: (amongst others) Wikipedia.