In the rocky highlands of Jordan and the shimmering deserts of Saudi Arabia lie the remains of two incredible cities – Petra and Hegra. A people known as the Nabataeans created them 2,000 years ago, carving great temples and tombs from the very rock. Much of the Nabataeans’ story has faded from history, but these sacred sites hold profound secrets about their way of life. Mysterious solar alignments, ancient inscriptions and new discoveries suggest that Petra and Hegra could have been centers of a ‘lost matriarchy’, in which women enjoyed unrivalled power and privilege.