Ed-Deir or Monastery, dating from, according to the Lonely Planet, third century BC, is a huge look-alike to the Treasurey. It has a large space in its front that in Nabatean times was probably used for cultic or festive rites. In the five niches in its façade would originally stand statues, what they represented is unknown. A votive inscription nearby mentions the deified King Obodas III, whose grave is supposed to be in nearby Aveda in the Negev. After his death he seems to have been worshipped in Petra too, it is conceivable this was his sanctuary. In that case the central niche would have held a statue of him. It used to be possible to get a better view, climbing to the rooftop by a staircase now closed after a tourist fell to his death.