Petra is the treasure of ancient world, hidden behind an almost impenetrable barrier of rugged mountains, boasting incomparable scenes that make it the most  majestic and imposing ancient site still-standing nowadays.. It has been said "perhaps there is nothing in the world that resembles it ", actually, for sure, there is nothing in the world that resembles it . The rock-carved rose-red city of Petra is full of mysterious charm, it was "designed to strike wonder into all who entered it".  Petra is considered the mostfamous and gorgeous site in Jordan located about 262 km south of Amman and 133 km north of Agaba. It is the legacy of the Nabataeans, an industrious Arab people who settled in southern Jordan more than 2000 years ago.  Primarily known as a commercial and ceremonial center of the Nabataean culture during the centuries before and after the time of Christ, the region of Petra was inhabited in far greater antiquity. Archaeological excavations have revealed a rock shelter of the Upper Paleolithic period, dating to around 10,000 BC, and a Neolithic village from the 7th millennium BC. While evidence of habitation during the Chalcolithic and Bronze ages has not yet been found, the region of Petra was again occupied in the early Iron Age, around 1200 BC, by the Edomite culture of the Old Testament (Edom, meaning red, is the Biblical name for this region of the Middle East).