Petra. Jordan. View of the majestic and breathless Hellenistic elegant facade of the world famous Treasury building at the Red Rose city of Petra. The Treasury dates to around the 1st century BC and is believed to be commissioned by the Nabatean king Aretas III. The King was a lover of all things Greek and he brought architects from the Greek Mediterranean world to Petra to help craft the building. Carved out of solid rock, the building rises 43 meters high and was used as a royal tomb and not as a treasury. The vast city of Petra is the ancient home of the Kingdom of Nabataeans who settled here there more than two thousand years ago. It is a UNSECO world heritage listed site.