Title: al-ʻUlā wa-Madāʼin Ṣāliḥ (al-ḥajar)
Description: ʻUlā; Madāʼin Ṣāliḥ; Saudi Arabia; history.
Subjects: Antiquities, Civilization
Places: ʻUlā (Saudi Arabia), Madāʼin Ṣāliḥ (Saudi Arabia)