Lying on thr slopes of Mount Hor in Hashemite Kingdom of Jordan is one of the most magnificent ancient civilizations. It is an entire city carved out of rock. This city was created by ancient Arabic tribe know as the Nabataeans. This City was hiden from From us untill it was discoved by a Swiss archaeologist named Johann Ludwig Burckhardt.
Petra may have been the Capital City of Nabataeans people. This civilazatiom dates back to 100 BC.
Rock architecture is not unique to Petra city. It plays an important role in Indian Architecture, who used in for thier temples. The turkish also used it for dewellings example cappadocia settlement in central Turkey,in Nevşehir Province. The Nabataens were traders who moved with camel caravans and could have been gained thier knowledge by trading in the foreighn lands.