Petra is in a category of its own_over 2,000-year-old city carved into rose-colored stone and hidden from view by the mountains. The site of this magnificent city was lost to the world for over 1000 years and was rediscovered in 1812 AD.
Entered only through the siq, a narrow crevice in the rock, Petra stuns the visitor with its beauty and grandeur. From the imposing Al Khaznah (meaning treasury), carved out of solid rock, to the high place of sacrifice above Petra, to the theatre, seating 8,000 people, to the lofty Deir (meaning monastery), at the top of the hills, one marvels at the eclectic architecture of the Nabeteans and the little-known culture that produced it. The Royal Academician, David Roberts, among many others, visited Petra and produced wonderful etchings and drawings. Over 800 monuments survive, and each one offers the viewer a small piece of the puzzle. But the mystery of Petra remains elusive and fascinating even after many visits.
In addition to the Nabetean ruins of Petra, Wadi Musa has many other attractions. For example, Bayda is one of the oldest sites in the Middle East showing evidence of habitation by pre-pottery Neolithic humans. Excavations indicate that these early people were herders who were beginning to experiment with a semi-settled agricultural existence. On top of Jabal Harun (Mount Aaron), the highest summit in the region, there  is a small white-domed mosque, built in the 14C AD, and said to contain the tomb of Prophet Harun, Moses' brother.
These are but a few of the many attractions of Petra.