The Khazneh ("Treasury") is the first structure seen by visitors as they exit the narrow confines of the Siq. It is actually a royal tomb, not a treasury, possibly made for Aretas III or Aretas IV in the first century BC. It has also been suggested as a mausoleum (a funerary monument without a burial) for the deified Obodas I, father of Aretas III. Its architecture is traceable to Hellenistic Alexandria.